5579640656 has 20 divisors (see below), whose sum is σ = 11280578592. Its totient is φ = 2668523616.

The previous prime is 5579640623. The next prime is 5579640701. The reversal of 5579640656 is 6560469755.

It is a happy number.

It is a super-2 number, since 2×5579640656² = 62264779700176220672, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5579640598 and 5579640607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7580666 + ... + 7581401.

Almost surely, 2^5579640656 is an apocalyptic number.

It is an amenable number.

5579640656 is an abundant number, since it is smaller than the sum of its proper divisors (5700937936).

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

5579640656 is a wasteful number, since it uses less digits than its factorization.

5579640656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15162098 (or 15162092 counting only the distinct ones).

The product of its (nonzero) digits is 6804000, while the sum is 53.

The square root of 5579640656 is about 74696.9922821528. The cubic root of 5579640656 is about 1773.6533493858.

The spelling of 5579640656 in words is "five billion, five hundred seventy-nine million, six hundred forty thousand, six hundred fifty-six".