667606620127076 has 24 divisors (see below), whose sum is σ = 1405487621321280. Its totient is φ = 271058326968672.

The previous prime is 667606620127033. The next prime is 667606620127211. The reversal of 667606620127076 is 670721026606766.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 627449830415 + ... + 627449831478.

It is an arithmetic number, because the mean of its divisors is an integer number (58561984221720).

Almost surely, 2^{667606620127076} is an apocalyptic number.

It is an amenable number.

667606620127076 is an abundant number, since it is smaller than the sum of its proper divisors (737881001194204).

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

667606620127076 is a wasteful number, since it uses less digits than its factorization.

667606620127076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254899661923 (or 1254899661921 counting only the distinct ones).

The product of its (nonzero) digits is 64012032, while the sum is 62.

The spelling of 667606620127076 in words is "six hundred sixty-seven trillion, six hundred six billion, six hundred twenty million, one hundred twenty-seven thousand, seventy-six".