161079857712 has 120 divisors (see below), whose sum is σ = 487974772080. Its totient is φ = 50867274240.

The previous prime is 161079857707. The next prime is 161079857759. The reversal of 161079857712 is 217758970161.

161079857712 is a `hidden beast` number, since 1 + 61 + 0 + 7 + 9 + 8 + 577 + 1 + 2 = 666.

161079857712 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 360489 + ... + 672392.

It is an arithmetic number, because the mean of its divisors is an integer number (4066456434).

Almost surely, 2^161079857712 is an apocalyptic number.

161079857712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

161079857712 is an abundant number, since it is smaller than the sum of its proper divisors (326894914368).

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

161079857712 is a wasteful number, since it uses less digits than its factorization.

161079857712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032936 (or 1032905 counting only the distinct ones).

The product of its (nonzero) digits is 1481760, while the sum is 54.

The spelling of 161079857712 in words is "one hundred sixty-one billion, seventy-nine million, eight hundred fifty-seven thousand, seven hundred twelve".