667559005937 has 4 divisors (see below), whose sum is σ = 702693690480. Its totient is φ = 632424321396.

The previous prime is 667559005933. The next prime is 667559006033. The reversal of 667559005937 is 739500955766.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 667559005937 - 2² = 667559005933 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 667559005937.

It is not an unprimeable number, because it can be changed into a prime (667559005933) 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 3 ways as a sum of consecutive naturals, for example, 17567342243 + ... + 17567342280.

It is an arithmetic number, because the mean of its divisors is an integer number (175673422620).

Almost surely, 2^667559005937 is an apocalyptic number.

It is an amenable number.

667559005937 is a deficient number, since it is larger than the sum of its proper divisors (35134684543).

667559005937 is a wasteful number, since it uses less digits than its factorization.

667559005937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35134684542.

The product of its (nonzero) digits is 53581500, while the sum is 62.

The spelling of 667559005937 in words is "six hundred sixty-seven billion, five hundred fifty-nine million, five thousand, nine hundred thirty-seven".