15220520000 has 280 divisors, whose sum is σ = 45419711040. Its totient is φ = 4942080000.

The previous prime is 15220519999. The next prime is 15220520011. The reversal of 15220520000 is 2502251.

It is a tau number, because it is divible by the number of its divisors (280).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5318570 + ... + 5321430.

Almost surely, 2^15220520000 is an apocalyptic number.

15220520000 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 15220520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22709855520).

15220520000 is an abundant number, since it is smaller than the sum of its proper divisors (30199191040).

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

15220520000 is an equidigital number, since it uses as much as digits as its factorization.

15220520000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2919 (or 2894 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The spelling of 15220520000 in words is "fifteen billion, two hundred twenty million, five hundred twenty thousand".