255516718967 has 2 divisors, whose sum is σ = 255516718968. Its totient is φ = 255516718966.

The previous prime is 255516718943. The next prime is 255516718981. The reversal of 255516718967 is 769817615552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 255516718967 - 2²⁶ = 255449610103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255516718267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127758359483 + 127758359484.

It is an arithmetic number, because the mean of its divisors is an integer number (127758359484).

Almost surely, 2^255516718967 is an apocalyptic number.

255516718967 is a deficient number, since it is larger than the sum of its proper divisors (1).

255516718967 is an equidigital number, since it uses as much as digits as its factorization.

255516718967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752000, while the sum is 62.

The spelling of 255516718967 in words is "two hundred fifty-five billion, five hundred sixteen million, seven hundred eighteen thousand, nine hundred sixty-seven".