656535455344 has 20 divisors (see below), whose sum is σ = 1279654440624. Its totient is φ = 326302051328.

The previous prime is 656535455333. The next prime is 656535455347. The reversal of 656535455344 is 443554535656.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656535455347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122852017 + ... + 122857360.

Almost surely, 2^656535455344 is an apocalyptic number.

It is an amenable number.

656535455344 is a deficient number, since it is larger than the sum of its proper divisors (623118985280).

656535455344 is a wasteful number, since it uses less digits than its factorization.

656535455344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245709552 (or 245709546 counting only the distinct ones).

The product of its digits is 64800000, while the sum is 55.

The spelling of 656535455344 in words is "six hundred fifty-six billion, five hundred thirty-five million, four hundred fifty-five thousand, three hundred forty-four".