5656877656 has 16 divisors (see below), whose sum is σ = 10621126800. Its totient is φ = 2824577184.

The previous prime is 5656877609. The next prime is 5656877701. The reversal of 5656877656 is 6567786565.

It is a junction number, because it is equal to n+sod(n) for n = 5656877594 and 5656877603.

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, 476476 + ... + 488203.

It is an arithmetic number, because the mean of its divisors is an integer number (663820425).

Almost surely, 2^5656877656 is an apocalyptic number.

It is an amenable number.

5656877656 is a deficient number, since it is larger than the sum of its proper divisors (4964249144).

5656877656 is a wasteful number, since it uses less digits than its factorization.

5656877656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965418 (or 965414 counting only the distinct ones).

The product of its digits is 63504000, while the sum is 61.

The square root of 5656877656 is about 75212.2174649837. The cubic root of 5656877656 is about 1781.7998938066.

The spelling of 5656877656 in words is "five billion, six hundred fifty-six million, eight hundred seventy-seven thousand, six hundred fifty-six".