255399207562144 has 96 divisors (see below), whose sum is σ = 507208726813824. Its totient is φ = 126587987635200.

The previous prime is 255399207562127. The next prime is 255399207562201. The reversal of 255399207562144 is 441265702993552.

It is a happy number.

It is a super-2 number, since 2×255399207562144² (a number of 30 digits) contains 22 as substring.

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, 9611216442 + ... + 9611243014.

It is an arithmetic number, because the mean of its divisors is an integer number (5283424237644).

Almost surely, 2^{255399207562144} is an apocalyptic number.

It is an amenable number.

255399207562144 is a deficient number, since it is larger than the sum of its proper divisors (251809519251680).

255399207562144 is a wasteful number, since it uses less digits than its factorization.

255399207562144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30830 (or 30822 counting only the distinct ones).

The product of its (nonzero) digits is 163296000, while the sum is 64.

The spelling of 255399207562144 in words is "two hundred fifty-five trillion, three hundred ninety-nine billion, two hundred seven million, five hundred sixty-two thousand, one hundred forty-four".