255606169931 has 16 divisors (see below), whose sum is σ = 300062938560. Its totient is φ = 213136634880.

The previous prime is 255606169913. The next prime is 255606169961. The reversal of 255606169931 is 139961606552.

It is a cyclic number.

It is not a de Polignac number, because 255606169931 - 2²⁶ = 255539061067 is a prime.

It is a super-2 number, since 2×255606169931² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (255606169961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1678115 + ... + 1824083.

It is an arithmetic number, because the mean of its divisors is an integer number (18753933660).

Almost surely, 2^255606169931 is an apocalyptic number.

255606169931 is a deficient number, since it is larger than the sum of its proper divisors (44456768629).

255606169931 is a wasteful number, since it uses less digits than its factorization.

255606169931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152774.

The product of its (nonzero) digits is 2624400, while the sum is 53.

The spelling of 255606169931 in words is "two hundred fifty-five billion, six hundred six million, one hundred sixty-nine thousand, nine hundred thirty-one".