5651555656 has 32 divisors (see below), whose sum is σ = 10763403840. Its totient is φ = 2781563328.

The previous prime is 5651555627. The next prime is 5651555669. The reversal of 5651555656 is 6565551565.

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, 168565 + ... + 199291.

It is an arithmetic number, because the mean of its divisors is an integer number (336356370).

Almost surely, 2^5651555656 is an apocalyptic number.

It is an amenable number.

5651555656 is a deficient number, since it is larger than the sum of its proper divisors (5111848184).

5651555656 is a wasteful number, since it uses less digits than its factorization.

5651555656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31093 (or 31089 counting only the distinct ones).

The product of its digits is 3375000, while the sum is 49.

The square root of 5651555656 is about 75176.8292494436. The cubic root of 5651555656 is about 1781.2409450390.

The spelling of 5651555656 in words is "five billion, six hundred fifty-one million, five hundred fifty-five thousand, six hundred fifty-six".