667370399970 has 16 divisors (see below), whose sum is σ = 1601688960000. Its totient is φ = 177965439984.

The previous prime is 667370399963. The next prime is 667370399987. The reversal of 667370399970 is 79993073766.

It is a super-2 number, since 2×667370399970² (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 7 ways as a sum of consecutive naturals, for example, 11122839970 + ... + 11122840029.

It is an arithmetic number, because the mean of its divisors is an integer number (100105560000).

Almost surely, 2^667370399970 is an apocalyptic number.

667370399970 is an abundant number, since it is smaller than the sum of its proper divisors (934318560030).

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

667370399970 is a wasteful number, since it uses less digits than its factorization.

667370399970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22245680009.

The product of its (nonzero) digits is 81015228, while the sum is 66.

The spelling of 667370399970 in words is "six hundred sixty-seven billion, three hundred seventy million, three hundred ninety-nine thousand, nine hundred seventy".