1317254306555 has 64 divisors (see below), whose sum is σ = 1858313318400. Its totient is φ = 886915008000.

The previous prime is 1317254306549. The next prime is 1317254306581. The reversal of 1317254306555 is 5556034527131.

It is not a de Polignac number, because 1317254306555 - 2¹⁴ = 1317254290171 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5267300 + ... + 5511710.

It is an arithmetic number, because the mean of its divisors is an integer number (29036145600).

Almost surely, 2^{1317254306555} is an apocalyptic number.

1317254306555 is a deficient number, since it is larger than the sum of its proper divisors (541059011845).

1317254306555 is a wasteful number, since it uses less digits than its factorization.

1317254306555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244596.

The product of its (nonzero) digits is 1890000, while the sum is 47.

The spelling of 1317254306555 in words is "one trillion, three hundred seventeen billion, two hundred fifty-four million, three hundred six thousand, five hundred fifty-five".