6165566015656 has 64 divisors (see below), whose sum is σ = 11888527665600. Its totient is φ = 2996746841088.

The previous prime is 6165566015629. The next prime is 6165566015663. The reversal of 6165566015656 is 6565106655616.

It is a super-2 number, since 2×6165566015656² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6165566015656.

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, 13647811 + ... + 14092333.

It is an arithmetic number, because the mean of its divisors is an integer number (185758244775).

Almost surely, 2^{6165566015656} is an apocalyptic number.

It is an amenable number.

6165566015656 is a deficient number, since it is larger than the sum of its proper divisors (5722961649944).

6165566015656 is a wasteful number, since it uses less digits than its factorization.

6165566015656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444938 (or 444934 counting only the distinct ones).

The product of its (nonzero) digits is 29160000, while the sum is 58.

The spelling of 6165566015656 in words is "six trillion, one hundred sixty-five billion, five hundred sixty-six million, fifteen thousand, six hundred fifty-six".