662975579251 has 2 divisors, whose sum is σ = 662975579252. Its totient is φ = 662975579250.

The previous prime is 662975579213. The next prime is 662975579293. The reversal of 662975579251 is 152975579266.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 662975579251 - 2²¹ = 662973482099 is a prime.

It is not a weakly prime, because it can be changed into another prime (662975579351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331487789625 + 331487789626.

It is an arithmetic number, because the mean of its divisors is an integer number (331487789626).

Almost surely, 2^662975579251 is an apocalyptic number.

662975579251 is a deficient number, since it is larger than the sum of its proper divisors (1).

662975579251 is an equidigital number, since it uses as much as digits as its factorization.

662975579251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 71442000, while the sum is 64.

The spelling of 662975579251 in words is "six hundred sixty-two billion, nine hundred seventy-five million, five hundred seventy-nine thousand, two hundred fifty-one".