656016122255 has 32 divisors (see below), whose sum is σ = 877172284800. Its totient is φ = 467650294272.

The previous prime is 656016122239. The next prime is 656016122257. The reversal of 656016122255 is 552221610656.

It is a cyclic number.

It is not a de Polignac number, because 656016122255 - 2⁴ = 656016122239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656016122257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11052317 + ... + 11111513.

It is an arithmetic number, because the mean of its divisors is an integer number (27411633900).

Almost surely, 2^656016122255 is an apocalyptic number.

656016122255 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

656016122255 is a deficient number, since it is larger than the sum of its proper divisors (221156162545).

656016122255 is a wasteful number, since it uses less digits than its factorization.

656016122255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65123.

The product of its (nonzero) digits is 216000, while the sum is 41.

The spelling of 656016122255 in words is "six hundred fifty-six billion, sixteen million, one hundred twenty-two thousand, two hundred fifty-five".