667635203013 has 8 divisors (see below), whose sum is σ = 890488623168. Its totient is φ = 444935959104.

The previous prime is 667635203003. The next prime is 667635203063. The reversal of 667635203013 is 310302536766.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 667635203013 - 2²⁴ = 667618425797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667635203003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38533956 + ... + 38551277.

It is an arithmetic number, because the mean of its divisors is an integer number (111311077896).

Almost surely, 2^667635203013 is an apocalyptic number.

It is an amenable number.

667635203013 is a deficient number, since it is larger than the sum of its proper divisors (222853420155).

667635203013 is a wasteful number, since it uses less digits than its factorization.

667635203013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77088123.

The product of its (nonzero) digits is 408240, while the sum is 42.

Adding to 667635203013 its reverse (310302536766), we get a palindrome (977937739779).

The spelling of 667635203013 in words is "six hundred sixty-seven billion, six hundred thirty-five million, two hundred three thousand, thirteen".