1312560255536 has 20 divisors (see below), whose sum is σ = 2545272191112. Its totient is φ = 655715819136.

The previous prime is 1312560255521. The next prime is 1312560255557. The reversal of 1312560255536 is 6355520652131.

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, 35250101 + ... + 35287316.

Almost surely, 2^{1312560255536} is an apocalyptic number.

1312560255536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1312560255536 is a deficient number, since it is larger than the sum of its proper divisors (1232711935576).

1312560255536 is a wasteful number, since it uses less digits than its factorization.

1312560255536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70538588 (or 70538582 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 44.

The spelling of 1312560255536 in words is "one trillion, three hundred twelve billion, five hundred sixty million, two hundred fifty-five thousand, five hundred thirty-six".