16611216056 has 32 divisors (see below), whose sum is σ = 31661744400. Its totient is φ = 8169208320.

The previous prime is 16611216043. The next prime is 16611216071. The reversal of 16611216056 is 65061211661.

It is a super-2 number, since 2×16611216056² (a number of 21 digits) 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, 48290 + ... + 188558.

Almost surely, 2^16611216056 is an apocalyptic number.

It is an amenable number.

16611216056 is a deficient number, since it is larger than the sum of its proper divisors (15050528344).

16611216056 is a wasteful number, since it uses less digits than its factorization.

16611216056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140519 (or 140515 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 35.

The spelling of 16611216056 in words is "sixteen billion, six hundred eleven million, two hundred sixteen thousand, fifty-six".