656031610453 has 4 divisors (see below), whose sum is σ = 656053152300. Its totient is φ = 656010068608.

The previous prime is 656031610441. The next prime is 656031610469. The reversal of 656031610453 is 354016130656.

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

It can be written as a sum of positive squares in 2 ways, for example, as 299715736369 + 356315874084 = 547463^2 + 596922^2 .

It is a cyclic number.

It is not a de Polignac number, because 656031610453 - 2⁹ = 656031609941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656031610433) 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, 10725178 + ... + 10786171.

It is an arithmetic number, because the mean of its divisors is an integer number (164013288075).

Almost surely, 2^656031610453 is an apocalyptic number.

It is an amenable number.

656031610453 is a deficient number, since it is larger than the sum of its proper divisors (21541847).

656031610453 is a wasteful number, since it uses less digits than its factorization.

656031610453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21541846.

The product of its (nonzero) digits is 194400, while the sum is 40.

The spelling of 656031610453 in words is "six hundred fifty-six billion, thirty-one million, six hundred ten thousand, four hundred fifty-three".