6555611556165 has 32 divisors (see below), whose sum is σ = 12003892992000. Its totient is φ = 2992728746304.

The previous prime is 6555611556157. The next prime is 6555611556191. The reversal of 6555611556165 is 5616551165556.

It is not a de Polignac number, because 6555611556165 - 2³ = 6555611556157 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42863415 + ... + 43016084.

It is an arithmetic number, because the mean of its divisors is an integer number (375121656000).

Almost surely, 2^{6555611556165} is an apocalyptic number.

It is an amenable number.

6555611556165 is a deficient number, since it is larger than the sum of its proper divisors (5448281435835).

6555611556165 is a wasteful number, since it uses less digits than its factorization.

6555611556165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85880241.

The product of its digits is 20250000, while the sum is 57.

The spelling of 6555611556165 in words is "six trillion, five hundred fifty-five billion, six hundred eleven million, five hundred fifty-six thousand, one hundred sixty-five".