161507527056 has 60 divisors (see below), whose sum is σ = 478584811692. Its totient is φ = 50669027328.

The previous prime is 161507527003. The next prime is 161507527081. The reversal of 161507527056 is 650725705161.

161507527056 is a `hidden beast` number, since 1 + 615 + 0 + 7 + 5 + 27 + 0 + 5 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 45420134400 + 116087392656 = 213120^2 + 340716^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32985201 + ... + 32990096.

Almost surely, 2^161507527056 is an apocalyptic number.

161507527056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

161507527056 is an abundant number, since it is smaller than the sum of its proper divisors (317077284636).

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

161507527056 is a wasteful number, since it uses less digits than its factorization.

161507527056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65975328 (or 65975319 counting only the distinct ones).

The product of its (nonzero) digits is 441000, while the sum is 45.

The spelling of 161507527056 in words is "one hundred sixty-one billion, five hundred seven million, five hundred twenty-seven thousand, fifty-six".