667674342704 has 20 divisors (see below), whose sum is σ = 1349863345776. Its totient is φ = 319322511552.

The previous prime is 667674342689. The next prime is 667674342767. The reversal of 667674342704 is 407243476766.

It is a self number, because there is not a number n which added to its sum of digits gives 667674342704.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 907165859 + ... + 907166594.

Almost surely, 2^667674342704 is an apocalyptic number.

It is an amenable number.

667674342704 is an abundant number, since it is smaller than the sum of its proper divisors (682189003072).

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

667674342704 is a wasteful number, since it uses less digits than its factorization.

667674342704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1814332484 (or 1814332478 counting only the distinct ones).

The product of its (nonzero) digits is 28449792, while the sum is 56.

The spelling of 667674342704 in words is "six hundred sixty-seven billion, six hundred seventy-four million, three hundred forty-two thousand, seven hundred four".