15222997116 has 60 divisors (see below), whose sum is σ = 40161114840. Its totient is φ = 5027767200.

The previous prime is 15222997099. The next prime is 15222997117. The reversal of 15222997116 is 61179922251.

15222997116 is a `hidden beast` number, since 1 + 522 + 2 + 9 + 9 + 7 + 116 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15222997117) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 180210 + ... + 250841.

It is an arithmetic number, because the mean of its divisors is an integer number (669351914).

Almost surely, 2^15222997116 is an apocalyptic number.

It is an amenable number.

15222997116 is an abundant number, since it is smaller than the sum of its proper divisors (24938117724).

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

15222997116 is a wasteful number, since it uses less digits than its factorization.

15222997116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431176 (or 431165 counting only the distinct ones).

The product of its digits is 136080, while the sum is 45.

The spelling of 15222997116 in words is "fifteen billion, two hundred twenty-two million, nine hundred ninety-seven thousand, one hundred sixteen".