32497257664 has 28 divisors (see below), whose sum is σ = 68280085944. Its totient is φ = 15292826624.

The previous prime is 32497257659. The next prime is 32497257671. The reversal of 32497257664 is 46675279423.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14933314 + ... + 14935489.

It is an arithmetic number, because the mean of its divisors is an integer number (2438574498).

Almost surely, 2^32497257664 is an apocalyptic number.

32497257664 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

32497257664 is an abundant number, since it is smaller than the sum of its proper divisors (35782828280).

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

32497257664 is a wasteful number, since it uses less digits than its factorization.

32497257664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29868832 (or 29868822 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 55.

The spelling of 32497257664 in words is "thirty-two billion, four hundred ninety-seven million, two hundred fifty-seven thousand, six hundred sixty-four".