671025264 has 80 divisors (see below), whose sum is σ = 2133530112. Its totient is φ = 176972544.

The previous prime is 671025247. The next prime is 671025293. The reversal of 671025264 is 462520176.

It is a congruent number.

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, 72444 + ... + 81179.

Almost surely, 2^671025264 is an apocalyptic number.

It is an amenable number.

671025264 is an abundant number, since it is smaller than the sum of its proper divisors (1462504848).

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

671025264 is a wasteful number, since it uses less digits than its factorization.

671025264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153654 (or 153648 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 671025264 is about 25904.1553423384. The cubic root of 671025264 is about 875.4801235496.

The spelling of 671025264 in words is "six hundred seventy-one million, twenty-five thousand, two hundred sixty-four".