216560165056 has 56 divisors (see below), whose sum is σ = 466946447360. Its totient is φ = 99272044800.

The previous prime is 216560165053. The next prime is 216560165057. The reversal of 216560165056 is 650561065612.

It is a super-4 number, since 4×216560165056⁴ (a number of 46 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (216560165053) 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, 2834760 + ... + 2910151.

Almost surely, 2^216560165056 is an apocalyptic number.

It is an amenable number.

216560165056 is an abundant number, since it is smaller than the sum of its proper divisors (250386282304).

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

216560165056 is a wasteful number, since it uses less digits than its factorization.

216560165056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5744973 (or 5744963 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 43.

The spelling of 216560165056 in words is "two hundred sixteen billion, five hundred sixty million, one hundred sixty-five thousand, fifty-six".