652660369979 has 8 divisors (see below), whose sum is σ = 653214855168. Its totient is φ = 652105981800.

The previous prime is 652660369919. The next prime is 652660369987. The reversal of 652660369979 is 979963066256.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-652660369979 is a prime.

It is a super-2 number, since 2×652660369979² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (652660369919) 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, 20620364 + ... + 20651990.

It is an arithmetic number, because the mean of its divisors is an integer number (81651856896).

Almost surely, 2^652660369979 is an apocalyptic number.

652660369979 is a deficient number, since it is larger than the sum of its proper divisors (554485189).

652660369979 is a wasteful number, since it uses less digits than its factorization.

652660369979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48505.

The product of its (nonzero) digits is 198404640, while the sum is 68.

The spelling of 652660369979 in words is "six hundred fifty-two billion, six hundred sixty million, three hundred sixty-nine thousand, nine hundred seventy-nine".