6666511161116 has 72 divisors (see below), whose sum is σ = 11891121668160. Its totient is φ = 3270219603840.

The previous prime is 6666511161097. The next prime is 6666511161127. The reversal of 6666511161116 is 6111611156666.

It is a super-2 number, since 2×6666511161116² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5424337190 + ... + 5424338418.

Almost surely, 2^{6666511161116} is an apocalyptic number.

It is an amenable number.

6666511161116 is a deficient number, since it is larger than the sum of its proper divisors (5224610507044).

6666511161116 is a wasteful number, since it uses less digits than its factorization.

6666511161116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2475 (or 2402 counting only the distinct ones).

The product of its digits is 233280, while the sum is 47.

The spelling of 6666511161116 in words is "six trillion, six hundred sixty-six billion, five hundred eleven million, one hundred sixty-one thousand, one hundred sixteen".