6656632387570 has 32 divisors (see below), whose sum is σ = 13759163599680. Its totient is φ = 2293193931840.

The previous prime is 6656632387549. The next prime is 6656632387597. The reversal of 6656632387570 is 757832366566.

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, 1592493697 + ... + 1592497876.

It is an arithmetic number, because the mean of its divisors is an integer number (429973862490).

Almost surely, 2^{6656632387570} is an apocalyptic number.

6656632387570 is an abundant number, since it is smaller than the sum of its proper divisors (7102531212110).

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

6656632387570 is a wasteful number, since it uses less digits than its factorization.

6656632387570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3184991610.

The product of its (nonzero) digits is 228614400, while the sum is 64.

The spelling of 6656632387570 in words is "six trillion, six hundred fifty-six billion, six hundred thirty-two million, three hundred eighty-seven thousand, five hundred seventy".