13158118754640 has 60 divisors (see below), whose sum is σ = 44189348820084. Its totient is φ = 3508831667712.

The previous prime is 13158118754621. The next prime is 13158118754657. The reversal of 13158118754640 is 4645781185131.

13158118754640 is a `hidden beast` number, since 1 + 3 + 1 + 5 + 8 + 11 + 87 + 546 + 4 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5387338092096 + 7770780662544 = 2321064^2 + 2787612^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×13158118754640² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 9137581749 + ... + 9137583188.

Almost surely, 2^{13158118754640} is an apocalyptic number.

13158118754640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13158118754640 is an abundant number, since it is smaller than the sum of its proper divisors (31031230065444).

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

13158118754640 is a wasteful number, since it uses less digits than its factorization.

13158118754640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18275164956 (or 18275164947 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 54.

The spelling of 13158118754640 in words is "thirteen trillion, one hundred fifty-eight billion, one hundred eighteen million, seven hundred fifty-four thousand, six hundred forty".