6691577646696 has 64 divisors (see below), whose sum is σ = 17539021048320. Its totient is φ = 2123434864320.

The previous prime is 6691577646647. The next prime is 6691577646751. The reversal of 6691577646696 is 6966467751966.

It is a super-2 number, since 2×6691577646696² (a number of 26 digits) contains 22 as substring.

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, 28609650 + ... + 28842593.

It is an arithmetic number, because the mean of its divisors is an integer number (274047203880).

Almost surely, 2^{6691577646696} is an apocalyptic number.

It is an amenable number.

6691577646696 is an abundant number, since it is smaller than the sum of its proper divisors (10847443401624).

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

6691577646696 is a wasteful number, since it uses less digits than its factorization.

6691577646696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57452486 (or 57452482 counting only the distinct ones).

The product of its digits is 3703553280, while the sum is 78.

The spelling of 6691577646696 in words is "six trillion, six hundred ninety-one billion, five hundred seventy-seven million, six hundred forty-six thousand, six hundred ninety-six".