13115629620 has 96 divisors (see below), whose sum is σ = 40892342400. Its totient is φ = 3489944832.

The previous prime is 13115629601. The next prime is 13115629661. The reversal of 13115629620 is 2692651131.

13115629620 is a `hidden beast` number, since 1 + 3 + 1 + 1 + 5 + 6 + 29 + 620 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 226176 + ... + 278184.

It is an arithmetic number, because the mean of its divisors is an integer number (425961900).

Almost surely, 2^13115629620 is an apocalyptic number.

13115629620 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 13115629620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20446171200).

13115629620 is an abundant number, since it is smaller than the sum of its proper divisors (27776712780).

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

13115629620 is a wasteful number, since it uses less digits than its factorization.

13115629620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52494 (or 52486 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The spelling of 13115629620 in words is "thirteen billion, one hundred fifteen million, six hundred twenty-nine thousand, six hundred twenty".