1313566255664 has 80 divisors (see below), whose sum is σ = 2748633472032. Its totient is φ = 604531759104.

The previous prime is 1313566255643. The next prime is 1313566255667. The reversal of 1313566255664 is 4665526653131.

It is not an unprimeable number, because it can be changed into a prime (1313566255667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211283084 + ... + 211289300.

Almost surely, 2^{1313566255664} is an apocalyptic number.

It is an amenable number.

1313566255664 is an abundant number, since it is smaller than the sum of its proper divisors (1435067216368).

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

1313566255664 is a wasteful number, since it uses less digits than its factorization.

1313566255664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8974 (or 8968 counting only the distinct ones).

The product of its digits is 11664000, while the sum is 53.

The spelling of 1313566255664 in words is "one trillion, three hundred thirteen billion, five hundred sixty-six million, two hundred fifty-five thousand, six hundred sixty-four".