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131320665160 = 235199110314957
BaseRepresentation
bin111101001001101010…
…0100101010001001000
3110112221221222222122021
41322103110211101020
54122421042241120
6140154453334224
712326151144046
oct1722324452110
9415857888567
10131320665160
1150769101443
122154b037374
13c4ca6968c9
1464daa49396
153638c86aaa
hex1e93525448

131320665160 has 64 divisors (see below), whose sum is σ = 297245376000. Its totient is φ = 52213430016.

The previous prime is 131320665139. The next prime is 131320665167. The reversal of 131320665160 is 61566023131.

It is not an unprimeable number, because it can be changed into a prime (131320665167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8772402 + ... + 8787358.

It is an arithmetic number, because the mean of its divisors is an integer number (4644459000).

Almost surely, 2131320665160 is an apocalyptic number.

131320665160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131320665160 is an abundant number, since it is smaller than the sum of its proper divisors (165924710840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131320665160 is a wasteful number, since it uses less digits than its factorization.

131320665160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16270 (or 16266 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

Adding to 131320665160 its reverse (61566023131), we get a palindrome (192886688291).

The spelling of 131320665160 in words is "one hundred thirty-one billion, three hundred twenty million, six hundred sixty-five thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 199 398 796 995 1103 1592 1990 2206 3980 4412 5515 7960 8824 11030 14957 22060 29914 44120 59828 74785 119656 149570 219497 299140 438994 598280 877988 1097485 1755976 2194970 2976443 4389940 5952886 8779880 11905772 14882215 16497571 23811544 29764430 32995142 59528860 65990284 82487855 119057720 131980568 164975710 329951420 659902840 3283016629 6566033258 13132066516 16415083145 26264133032 32830166290 65660332580 131320665160