1313536671144 has 96 divisors (see below), whose sum is σ = 3742757240040. Its totient is φ = 415621324800.

The previous prime is 1313536671113. The next prime is 1313536671157. The reversal of 1313536671144 is 4411766353131.

1313536671144 is a `hidden beast` number, since 1 + 3 + 1 + 3 + 536 + 6 + 71 + 1 + 44 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1157797520100 + 155739151044 = 1076010^2 + 394638^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1313536671144.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5903817 + ... + 6122264.

Almost surely, 2^{1313536671144} is an apocalyptic number.

It is an amenable number.

1313536671144 is an abundant number, since it is smaller than the sum of its proper divisors (2429220568896).

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

1313536671144 is a wasteful number, since it uses less digits than its factorization.

1313536671144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12026171 (or 12026164 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The spelling of 1313536671144 in words is "one trillion, three hundred thirteen billion, five hundred thirty-six million, six hundred seventy-one thousand, one hundred forty-four".