15505232220260 has 48 divisors (see below), whose sum is σ = 33327556756032. Its totient is φ = 6056160566400.

The previous prime is 15505232220239. The next prime is 15505232220263. The reversal of 15505232220260 is 6202223250551.

15505232220260 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 15505232220260.

It is not an unprimeable number, because it can be changed into a prime (15505232220263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 546650 + ... + 5595470.

It is an arithmetic number, because the mean of its divisors is an integer number (694324099084).

Almost surely, 2^{15505232220260} is an apocalyptic number.

15505232220260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15505232220260 is an abundant number, since it is smaller than the sum of its proper divisors (17822324535772).

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

15505232220260 is a wasteful number, since it uses less digits than its factorization.

15505232220260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5052444 (or 5052442 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 15505232220260 in words is "fifteen trillion, five hundred five billion, two hundred thirty-two million, two hundred twenty thousand, two hundred sixty".