13165920000 has 540 divisors, whose sum is σ = 48810425664. Its totient is φ = 3409920000.

The previous prime is 13165919999. The next prime is 13165920017. The reversal of 13165920000 is 2956131.

13165920000 is a `hidden beast` number, since 1 + 3 + 1 + 659 + 2 + 0 + 0 + 0 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 59039889 + ... + 59040111.

Almost surely, 2^13165920000 is an apocalyptic number.

13165920000 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 13165920000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24405212832).

13165920000 is an abundant number, since it is smaller than the sum of its proper divisors (35644505664).

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

13165920000 is an equidigital number, since it uses as much as digits as its factorization.

13165920000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The spelling of 13165920000 in words is "thirteen billion, one hundred sixty-five million, nine hundred twenty thousand".