255517773016 has 32 divisors (see below), whose sum is σ = 545373907200. Its totient is φ = 111094683040.

The previous prime is 255517772987. The next prime is 255517773073. The reversal of 255517773016 is 610377715552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63119956 + ... + 63124003.

It is an arithmetic number, because the mean of its divisors is an integer number (17042934600).

Almost surely, 2^255517773016 is an apocalyptic number.

It is an amenable number.

255517773016 is an abundant number, since it is smaller than the sum of its proper divisors (289856134184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255517773016 is a wasteful number, since it uses less digits than its factorization.

255517773016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126243999 (or 126243995 counting only the distinct ones).

The product of its (nonzero) digits is 1543500, while the sum is 49.

The spelling of 255517773016 in words is "two hundred fifty-five billion, five hundred seventeen million, seven hundred seventy-three thousand, sixteen".