13158618493440 has 240 divisors, whose sum is σ = 48934453119552. Its totient is φ = 3007684141056.

The previous prime is 13158618493399. The next prime is 13158618493451. The reversal of 13158618493440 is 4439481685131.

It is a tau number, because it is divible by the number of its divisors (240).

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, 17106964 + ... + 17859603.

Almost surely, 2^{13158618493440} is an apocalyptic number.

13158618493440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13158618493440 is an abundant number, since it is smaller than the sum of its proper divisors (35775834626112).

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

13158618493440 is an equidigital number, since it uses as much as digits as its factorization.

13158618493440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34966607 (or 34966584 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 57.

The spelling of 13158618493440 in words is "thirteen trillion, one hundred fifty-eight billion, six hundred eighteen million, four hundred ninety-three thousand, four hundred forty".