667231205382 has 64 divisors (see below), whose sum is σ = 1694636812800. Its totient is φ = 190628333280.

The previous prime is 667231205363. The next prime is 667231205393. The reversal of 667231205382 is 283502132766.

667231205382 is a `hidden beast` number, since 6 + 67 + 2 + 3 + 1 + 205 + 382 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13894369 + ... + 13942307.

It is an arithmetic number, because the mean of its divisors is an integer number (26478700200).

Almost surely, 2^667231205382 is an apocalyptic number.

667231205382 is an abundant number, since it is smaller than the sum of its proper divisors (1027405607418).

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

667231205382 is a wasteful number, since it uses less digits than its factorization.

667231205382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84778 (or 84772 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 667231205382 in words is "six hundred sixty-seven billion, two hundred thirty-one million, two hundred five thousand, three hundred eighty-two".