1601560056 has 32 divisors (see below), whose sum is σ = 4016960640. Its totient is φ = 532111968.

The previous prime is 1601560033. The next prime is 1601560087. The reversal of 1601560056 is 6500651061.

It is a super-2 number, since 2×1601560056² = 5129989225949446272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101316 + ... + 116051.

It is an arithmetic number, because the mean of its divisors is an integer number (125530020).

Almost surely, 2^1601560056 is an apocalyptic number.

It is an amenable number.

1601560056 is an abundant number, since it is smaller than the sum of its proper divisors (2415400584).

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

1601560056 is a wasteful number, since it uses less digits than its factorization.

1601560056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217683 (or 217679 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 1601560056 is about 40019.4959488497. The cubic root of 1601560056 is about 1169.9871077548.

The spelling of 1601560056 in words is "one billion, six hundred one million, five hundred sixty thousand, fifty-six".