656268155 has 16 divisors (see below), whose sum is σ = 794914560. Its totient is φ = 520108128.

The previous prime is 656268127. The next prime is 656268161. The reversal of 656268155 is 551862656.

It is a cyclic number.

It is not a de Polignac number, because 656268155 - 2⁶ = 656268091 is a prime.

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, 291464 + ... + 293706.

It is an arithmetic number, because the mean of its divisors is an integer number (49682160).

Almost surely, 2^656268155 is an apocalyptic number.

656268155 is a deficient number, since it is larger than the sum of its proper divisors (138646405).

656268155 is a wasteful number, since it uses less digits than its factorization.

656268155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2770.

The product of its digits is 432000, while the sum is 44.

The square root of 656268155 is about 25617.7312617648. The cubic root of 656268155 is about 869.0146747685.

The spelling of 656268155 in words is "six hundred fifty-six million, two hundred sixty-eight thousand, one hundred fifty-five".