667667662475 has 12 divisors (see below), whose sum is σ = 903172256520. Its totient is φ = 485576481600.

The previous prime is 667667662457. The next prime is 667667662513. The reversal of 667667662475 is 574266766766.

It is not a de Polignac number, because 667667662475 - 2²⁴ = 667650885259 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1213940930 + ... + 1213941479.

It is an arithmetic number, because the mean of its divisors is an integer number (75264354710).

Almost surely, 2^667667662475 is an apocalyptic number.

667667662475 is a deficient number, since it is larger than the sum of its proper divisors (235504594045).

667667662475 is a wasteful number, since it uses less digits than its factorization.

667667662475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2427882430 (or 2427882425 counting only the distinct ones).

The product of its digits is 640120320, while the sum is 68.

The spelling of 667667662475 in words is "six hundred sixty-seven billion, six hundred sixty-seven million, six hundred sixty-two thousand, four hundred seventy-five".