667231235532 has 72 divisors (see below), whose sum is σ = 1737661847376. Its totient is φ = 215716535424.

The previous prime is 667231235527. The next prime is 667231235603. The reversal of 667231235532 is 235532132766.

667231235532 is a `hidden beast` number, since 6 + 6 + 72 + 3 + 1 + 23 + 553 + 2 = 666.

667231235532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (45) 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 23 ways as a sum of consecutive naturals, for example, 367858 + ... + 1212345.

Almost surely, 2^667231235532 is an apocalyptic number.

It is an amenable number.

667231235532 is an abundant number, since it is smaller than the sum of its proper divisors (1070430611844).

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

667231235532 is a wasteful number, since it uses less digits than its factorization.

667231235532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1580567 (or 1580562 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 45.

The spelling of 667231235532 in words is "six hundred sixty-seven billion, two hundred thirty-one million, two hundred thirty-five thousand, five hundred thirty-two".