667212110764 has 12 divisors (see below), whose sum is σ = 1167627963600. Its totient is φ = 333604121168.

The previous prime is 667212110743. The next prime is 667212110801. The reversal of 667212110764 is 467011212766.

It is a self number, because there is not a number n which added to its sum of digits gives 667212110764.

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, 527457 + ... + 1269895.

It is an arithmetic number, because the mean of its divisors is an integer number (97302330300).

Almost surely, 2^667212110764 is an apocalyptic number.

It is an amenable number.

667212110764 is a deficient number, since it is larger than the sum of its proper divisors (500415852836).

667212110764 is a wasteful number, since it uses less digits than its factorization.

667212110764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967112 (or 967110 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 43.

The spelling of 667212110764 in words is "six hundred sixty-seven billion, two hundred twelve million, one hundred ten thousand, seven hundred sixty-four".