667670801696 has 12 divisors (see below), whose sum is σ = 1314476890902. Its totient is φ = 333835400832.

The previous prime is 667670801683. The next prime is 667670801701. The reversal of 667670801696 is 696108076766.

667670801696 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 628373290000 + 39297511696 = 792700^2 + 198236^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10432356245 + ... + 10432356308.

Almost surely, 2^667670801696 is an apocalyptic number.

It is an amenable number.

667670801696 is a deficient number, since it is larger than the sum of its proper divisors (646806089206).

667670801696 is a wasteful number, since it uses less digits than its factorization.

667670801696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20864712563 (or 20864712555 counting only the distinct ones).

The product of its (nonzero) digits is 27433728, while the sum is 62.

The spelling of 667670801696 in words is "six hundred sixty-seven billion, six hundred seventy million, eight hundred one thousand, six hundred ninety-six".