13359999986640 has 400 divisors, whose sum is σ = 47940852339072. Its totient is φ = 3445611291648.

The previous prime is 13359999986639. The next prime is 13359999986693. The reversal of 13359999986640 is 4668999995331.

13359999986640 is a `hidden beast` number, since 13 + 3 + 599 + 9 + 9 + 9 + 8 + 6 + 6 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a self number, because there is not a number n which added to its sum of digits gives 13359999986640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 39873087 + ... + 40206753.

Almost surely, 2^{13359999986640} is an apocalyptic number.

13359999986640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13359999986640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23970426169536).

13359999986640 is an abundant number, since it is smaller than the sum of its proper divisors (34580852352432).

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

13359999986640 is a wasteful number, since it uses less digits than its factorization.

13359999986640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333896 (or 333881 counting only the distinct ones).

The product of its (nonzero) digits is 3061100160, while the sum is 81.

It can be divided in two parts, 13359 and 999986640, that added together give a palindrome (999999999).

The spelling of 13359999986640 in words is "thirteen trillion, three hundred fifty-nine billion, nine hundred ninety-nine million, nine hundred eighty-six thousand, six hundred forty".