656131042253 has 8 divisors (see below), whose sum is σ = 669458609400. Its totient is φ = 642937420800.

The previous prime is 656131042219. The next prime is 656131042291. The reversal of 656131042253 is 352240131656.

656131042253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 135485094889 + 520645947364 = 368083^2 + 721558^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 656131042253 - 2³⁸ = 381253135309 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 (656131042153) 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, 33476528 + ... + 33496121.

It is an arithmetic number, because the mean of its divisors is an integer number (83682326175).

Almost surely, 2^656131042253 is an apocalyptic number.

It is an amenable number.

656131042253 is a deficient number, since it is larger than the sum of its proper divisors (13327567147).

656131042253 is a wasteful number, since it uses less digits than its factorization.

656131042253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66972847.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 656131042253 in words is "six hundred fifty-six billion, one hundred thirty-one million, forty-two thousand, two hundred fifty-three".