15000136403220 has 144 divisors (see below), whose sum is σ = 45908510356800. Its totient is φ = 3964168147968.

The previous prime is 15000136403101. The next prime is 15000136403233. The reversal of 15000136403220 is 2230463100051.

15000136403220 is a `hidden beast` number, since 1 + 5 + 0 + 0 + 0 + 1 + 36 + 403 + 220 = 666.

15000136403220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 192519831 + ... + 192597729.

It is an arithmetic number, because the mean of its divisors is an integer number (318809099700).

Almost surely, 2^{15000136403220} is an apocalyptic number.

15000136403220 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 15000136403220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22954255178400).

15000136403220 is an abundant number, since it is smaller than the sum of its proper divisors (30908373953580).

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

15000136403220 is a wasteful number, since it uses less digits than its factorization.

15000136403220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87494 (or 87489 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 15000136403220 its reverse (2230463100051), we get a palindrome (17230599503271).

The spelling of 15000136403220 in words is "fifteen trillion, one hundred thirty-six million, four hundred three thousand, two hundred twenty".