656155075116371 has 4 divisors (see below), whose sum is σ = 656171615073744. Its totient is φ = 656138535159000.

The previous prime is 656155075116313. The next prime is 656155075116397. The reversal of 656155075116371 is 173611570551656.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 656155075116371 - 2⁴⁶ = 585786330938707 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 656155075116371.

It is not an unprimeable number, because it can be changed into a prime (656155075116571) 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, 8269919180 + ... + 8269998521.

It is an arithmetic number, because the mean of its divisors is an integer number (164042903768436).

Almost surely, 2^{656155075116371} is an apocalyptic number.

656155075116371 is a deficient number, since it is larger than the sum of its proper divisors (16539957373).

656155075116371 is a wasteful number, since it uses less digits than its factorization.

656155075116371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16539957372.

The product of its (nonzero) digits is 19845000, while the sum is 59.

The spelling of 656155075116371 in words is "six hundred fifty-six trillion, one hundred fifty-five billion, seventy-five million, one hundred sixteen thousand, three hundred seventy-one".