667231216004 has 12 divisors (see below), whose sum is σ = 1167786375504. Its totient is φ = 333577965864.

The previous prime is 667231215983. The next prime is 667231216019. The reversal of 667231216004 is 400612132766.

It is a happy number.

It is a super-2 number, since 2×667231216004² (a number of 24 digits) contains 22 as substring.

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, 9370634 + ... + 9441569.

It is an arithmetic number, because the mean of its divisors is an integer number (97315531292).

Almost surely, 2^667231216004 is an apocalyptic number.

It is an amenable number.

667231216004 is a deficient number, since it is larger than the sum of its proper divisors (500555159500).

667231216004 is a wasteful number, since it uses less digits than its factorization.

667231216004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18821074 (or 18821072 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The spelling of 667231216004 in words is "six hundred sixty-seven billion, two hundred thirty-one million, two hundred sixteen thousand, four".