6611536656 has 80 divisors (see below), whose sum is σ = 19589777920. Its totient is φ = 2132749440.

The previous prime is 6611536643. The next prime is 6611536663. The reversal of 6611536656 is 6566351166.

6611536656 is a `hidden beast` number, since 6 + 61 + 1 + 536 + 6 + 56 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233455 + ... + 260238.

It is an arithmetic number, because the mean of its divisors is an integer number (244872224).

Almost surely, 2^6611536656 is an apocalyptic number.

It is an amenable number.

6611536656 is an abundant number, since it is smaller than the sum of its proper divisors (12978241264).

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

6611536656 is a wasteful number, since it uses less digits than its factorization.

6611536656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493741 (or 493729 counting only the distinct ones).

The product of its digits is 583200, while the sum is 45.

The square root of 6611536656 is about 81311.3562548307. The cubic root of 6611536656 is about 1876.8697585285.

The spelling of 6611536656 in words is "six billion, six hundred eleven million, five hundred thirty-six thousand, six hundred fifty-six".