1351613036556 has 36 divisors (see below), whose sum is σ = 3441515931672. Its totient is φ = 447249081024.

The previous prime is 1351613036549. The next prime is 1351613036567. The reversal of 1351613036556 is 6556303161531.

1351613036556 is a `hidden beast` number, since 1 + 3 + 5 + 1 + 61 + 3 + 0 + 36 + 556 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1351613036556² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 137019910 + ... + 137029773.

Almost surely, 2^{1351613036556} is an apocalyptic number.

It is an amenable number.

1351613036556 is an abundant number, since it is smaller than the sum of its proper divisors (2089902895116).

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

1351613036556 is a wasteful number, since it uses less digits than its factorization.

1351613036556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274049830 (or 274049825 counting only the distinct ones).

The product of its (nonzero) digits is 729000, while the sum is 45.

The spelling of 1351613036556 in words is "one trillion, three hundred fifty-one billion, six hundred thirteen million, thirty-six thousand, five hundred fifty-six".