5531599656 has 96 divisors (see below), whose sum is σ = 17203586400. Its totient is φ = 1588014720.

The previous prime is 5531599631. The next prime is 5531599673. The reversal of 5531599656 is 6569951355.

5531599656 is a `hidden beast` number, since 5 + 531 + 59 + 9 + 6 + 56 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 168751 + ... + 198846.

It is an arithmetic number, because the mean of its divisors is an integer number (179204025).

Almost surely, 2^5531599656 is an apocalyptic number.

It is an amenable number.

5531599656 is an abundant number, since it is smaller than the sum of its proper divisors (11671986744).

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

5531599656 is a wasteful number, since it uses less digits than its factorization.

5531599656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367639 (or 367632 counting only the distinct ones).

The product of its digits is 5467500, while the sum is 54.

The square root of 5531599656 is about 74374.7245776413. The cubic root of 5531599656 is about 1768.5482532553.

The spelling of 5531599656 in words is "five billion, five hundred thirty-one million, five hundred ninety-nine thousand, six hundred fifty-six".