6597666430656 has 112 divisors (see below), whose sum is σ = 20593637898240. Its totient is φ = 1824239554560.

The previous prime is 6597666430651. The next prime is 6597666430657. The reversal of 6597666430656 is 6560346667956.

It is a tau number, because it is divible by the number of its divisors (112).

It is not an unprimeable number, because it can be changed into a prime (6597666430651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79135401 + ... + 79218728.

Almost surely, 2^{6597666430656} is an apocalyptic number.

It is an amenable number.

6597666430656 is an abundant number, since it is smaller than the sum of its proper divisors (13995971467584).

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

6597666430656 is a wasteful number, since it uses less digits than its factorization.

6597666430656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158354182 (or 158354172 counting only the distinct ones).

The product of its (nonzero) digits is 881798400, while the sum is 69.

The spelling of 6597666430656 in words is "six trillion, five hundred ninety-seven billion, six hundred sixty-six million, four hundred thirty thousand, six hundred fifty-six".