56166619696 has 80 divisors (see below), whose sum is σ = 120320299008. Its totient is φ = 25187500800.

The previous prime is 56166619693. The next prime is 56166619697. The reversal of 56166619696 is 69691666165.

It is not an unprimeable number, because it can be changed into a prime (56166619693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4038771 + ... + 4052653.

Almost surely, 2^56166619696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56166619696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60160149504).

56166619696 is an abundant number, since it is smaller than the sum of its proper divisors (64153679312).

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

56166619696 is a wasteful number, since it uses less digits than its factorization.

56166619696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14210 (or 14204 counting only the distinct ones).

The product of its digits is 18895680, while the sum is 61.

The spelling of 56166619696 in words is "fifty-six billion, one hundred sixty-six million, six hundred nineteen thousand, six hundred ninety-six".