56011616817 has 8 divisors (see below), whose sum is σ = 80426937024. Its totient is φ = 34468687248.

The previous prime is 56011616767. The next prime is 56011616833. The reversal of 56011616817 is 71861611065.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56011616817 - 2¹² = 56011612721 is a prime.

It is a super-2 number, since 2×56011616817² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (56011616117) 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, 718097613 + ... + 718097690.

It is an arithmetic number, because the mean of its divisors is an integer number (10053367128).

Almost surely, 2^56011616817 is an apocalyptic number.

It is an amenable number.

56011616817 is a deficient number, since it is larger than the sum of its proper divisors (24415320207).

56011616817 is a wasteful number, since it uses less digits than its factorization.

56011616817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1436195319.

The product of its (nonzero) digits is 60480, while the sum is 42.

The spelling of 56011616817 in words is "fifty-six billion, eleven million, six hundred sixteen thousand, eight hundred seventeen".