667722207160 has 32 divisors (see below), whose sum is σ = 1502626444560. Its totient is φ = 267044175616.

The previous prime is 667722207133. The next prime is 667722207169. The reversal of 667722207160 is 61702227766.

It is a self number, because there is not a number n which added to its sum of digits gives 667722207160.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667722207169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1154629 + ... + 1633588.

Almost surely, 2^667722207160 is an apocalyptic number.

It is an amenable number.

667722207160 is an abundant number, since it is smaller than the sum of its proper divisors (834904237400).

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

667722207160 is a wasteful number, since it uses less digits than its factorization.

667722207160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2794215 (or 2794211 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 46.

The spelling of 667722207160 in words is "six hundred sixty-seven billion, seven hundred twenty-two million, two hundred seven thousand, one hundred sixty".