667662543052 has 36 divisors (see below), whose sum is σ = 1201059942600. Its totient is φ = 324749741184.

The previous prime is 667662543049. The next prime is 667662543137. The reversal of 667662543052 is 250345266766.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55296088 + ... + 55308160.

Almost surely, 2^667662543052 is an apocalyptic number.

It is an amenable number.

667662543052 is a deficient number, since it is larger than the sum of its proper divisors (533397399548).

667662543052 is a wasteful number, since it uses less digits than its factorization.

667662543052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22250 (or 22211 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 52.

The spelling of 667662543052 in words is "six hundred sixty-seven billion, six hundred sixty-two million, five hundred forty-three thousand, fifty-two".