663571464 has 16 divisors (see below), whose sum is σ = 1658928720. Its totient is φ = 221190480.

The previous prime is 663571439. The next prime is 663571477. The reversal of 663571464 is 464175366.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13824382 + ... + 13824429.

It is an arithmetic number, because the mean of its divisors is an integer number (103683045).

Almost surely, 2^663571464 is an apocalyptic number.

It is an amenable number.

663571464 is an abundant number, since it is smaller than the sum of its proper divisors (995357256).

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

663571464 is a wasteful number, since it uses less digits than its factorization.

663571464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27648820 (or 27648816 counting only the distinct ones).

The product of its digits is 362880, while the sum is 42.

The square root of 663571464 is about 25759.8809003458. The cubic root of 663571464 is about 872.2264127446.

The spelling of 663571464 in words is "six hundred sixty-three million, five hundred seventy-one thousand, four hundred sixty-four".