255515703068 has 12 divisors (see below), whose sum is σ = 448130935392. Its totient is φ = 127478292960.

The previous prime is 255515703029. The next prime is 255515703073. The reversal of 255515703068 is 860307515552.

It is a happy number.

It is a super-2 number, since 2×255515703068² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69887588 + ... + 69891243.

It is an arithmetic number, because the mean of its divisors is an integer number (37344244616).

Almost surely, 2^255515703068 is an apocalyptic number.

It is an amenable number.

255515703068 is a deficient number, since it is larger than the sum of its proper divisors (192615232324).

255515703068 is a wasteful number, since it uses less digits than its factorization.

255515703068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139779292 (or 139779290 counting only the distinct ones).

The product of its (nonzero) digits is 1260000, while the sum is 47.

The spelling of 255515703068 in words is "two hundred fifty-five billion, five hundred fifteen million, seven hundred three thousand, sixty-eight".