656145655 has 16 divisors (see below), whose sum is σ = 859499424. Its totient is φ = 476894080.

The previous prime is 656145649. The next prime is 656145661. The reversal of 656145655 is 556541656.

It is an interprime number because it is at equal distance from previous prime (656145649) and next prime (656145661).

It is not a de Polignac number, because 656145655 - 2⁷ = 656145527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120369 + ... + 125701.

It is an arithmetic number, because the mean of its divisors is an integer number (53718714).

Almost surely, 2^656145655 is an apocalyptic number.

656145655 is a deficient number, since it is larger than the sum of its proper divisors (203353769).

656145655 is a wasteful number, since it uses less digits than its factorization.

656145655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7586.

The product of its digits is 540000, while the sum is 43.

The square root of 656145655 is about 25615.3402280743. The cubic root of 656145655 is about 868.9606008755.

The spelling of 656145655 in words is "six hundred fifty-six million, one hundred forty-five thousand, six hundred fifty-five".