15045315220 has 96 divisors (see below), whose sum is σ = 35712617472. Its totient is φ = 5282585088.

The previous prime is 15045315169. The next prime is 15045315227. The reversal of 15045315220 is 2251354051.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15045315227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1027269 + ... + 1041811.

It is an arithmetic number, because the mean of its divisors is an integer number (372006432).

Almost surely, 2^15045315220 is an apocalyptic number.

15045315220 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 15045315220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17856308736).

15045315220 is an abundant number, since it is smaller than the sum of its proper divisors (20667302252).

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

15045315220 is a wasteful number, since it uses less digits than its factorization.

15045315220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14761 (or 14759 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 15045315220 its reverse (2251354051), we get a palindrome (17296669271).

The spelling of 15045315220 in words is "fifteen billion, forty-five million, three hundred fifteen thousand, two hundred twenty".