Search a number
-
+
161160160638 = 23231167827251
BaseRepresentation
bin1001011000010111100…
…1001110010101111110
3120101222112021102012110
42112011321032111332
510120024000120023
6202011433314450
714433461522511
oct2260571162576
9511875242173
10161160160638
1162390789004
1227298265a26
13122747226c9
147b2ba32d78
1542d3758a93
hex2585e4e57e

161160160638 has 16 divisors (see below), whose sum is σ = 336334248576. Its totient is φ = 51384399000.

The previous prime is 161160160631. The next prime is 161160160639. The reversal of 161160160638 is 836061061161.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 161160160596 and 161160160605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161160160631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 583913488 + ... + 583913763.

It is an arithmetic number, because the mean of its divisors is an integer number (21020890536).

Almost surely, 2161160160638 is an apocalyptic number.

161160160638 is an abundant number, since it is smaller than the sum of its proper divisors (175174087938).

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

161160160638 is a wasteful number, since it uses less digits than its factorization.

161160160638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167827279.

The product of its (nonzero) digits is 31104, while the sum is 39.

The spelling of 161160160638 in words is "one hundred sixty-one billion, one hundred sixty million, one hundred sixty thousand, six hundred thirty-eight".

Divisors: 1 2 3 6 23 46 69 138 1167827251 2335654502 3503481753 7006963506 26860026773 53720053546 80580080319 161160160638