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16013161161 = 331216348761
BaseRepresentation
bin11101110100111010…
…10111001011001001
31112022222120212112000
432322131113023021
5230243332124121
611204545341213
71104551424024
oct167235271311
945288525460
1016013161161
116878014a98
12312a937809
1316827138ba
14abc9da1bb
1563ac45526
hex3ba7572c9

16013161161 has 16 divisors (see below), whose sum is σ = 23725638720. Its totient is φ = 10674344160.

The previous prime is 16013161147. The next prime is 16013161163. The reversal of 16013161161 is 16116131061.

16013161161 is a `hidden beast` number, since 16 + 0 + 1 + 31 + 611 + 6 + 1 = 666.

It is not a de Polignac number, because 16013161161 - 26 = 16013161097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (16013161163) 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, 304021 + ... + 352781.

It is an arithmetic number, because the mean of its divisors is an integer number (1482852420).

Almost surely, 216013161161 is an apocalyptic number.

It is an amenable number.

16013161161 is a deficient number, since it is larger than the sum of its proper divisors (7712477559).

16013161161 is a wasteful number, since it uses less digits than its factorization.

16013161161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60933 (or 60927 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The spelling of 16013161161 in words is "sixteen billion, thirteen million, one hundred sixty-one thousand, one hundred sixty-one".

Divisors: 1 3 9 27 12163 36489 48761 109467 146283 328401 438849 1316547 593080043 1779240129 5337720387 16013161161