15622250120 has 64 divisors (see below), whose sum is σ = 36447667200. Its totient is φ = 6019229440.

The previous prime is 15622250107. The next prime is 15622250153. The reversal of 15622250120 is 2105222651.

It is a Cunningham number, because it is equal to 124989²-1.

It is a self number, because there is not a number n which added to its sum of digits gives 15622250120.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 484337 + ... + 515583.

It is an arithmetic number, because the mean of its divisors is an integer number (569494800).

Almost surely, 2^15622250120 is an apocalyptic number.

15622250120 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 15622250120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18223833600).

15622250120 is an abundant number, since it is smaller than the sum of its proper divisors (20825417080).

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

15622250120 is a wasteful number, since it uses less digits than its factorization.

15622250120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31718 (or 31714 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 15622250120 its reverse (2105222651), we get a palindrome (17727472771).

The spelling of 15622250120 in words is "fifteen billion, six hundred twenty-two million, two hundred fifty thousand, one hundred twenty".