15204224820 has 48 divisors (see below), whose sum is σ = 42582633408. Its totient is φ = 4053431040.

The previous prime is 15204224801. The next prime is 15204224857. The reversal of 15204224820 is 2842240251.

15204224820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222975 + ... + 283065.

It is an arithmetic number, because the mean of its divisors is an integer number (887138196).

Almost surely, 2^15204224820 is an apocalyptic number.

15204224820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15204224820 is an abundant number, since it is smaller than the sum of its proper divisors (27378408588).

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

15204224820 is a wasteful number, since it uses less digits than its factorization.

15204224820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64320 (or 64318 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 30.

The spelling of 15204224820 in words is "fifteen billion, two hundred four million, two hundred twenty-four thousand, eight hundred twenty".