15243122216 has 64 divisors (see below), whose sum is σ = 35777894400. Its totient is φ = 5936458752.

The previous prime is 15243122197. The next prime is 15243122333. The reversal of 15243122216 is 61222134251.

It is a Harshad number since it is a multiple of its sum of digits (29).

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, 248456 + ... + 303671.

It is an arithmetic number, because the mean of its divisors is an integer number (559029600).

Almost surely, 2^15243122216 is an apocalyptic number.

It is an amenable number.

15243122216 is an abundant number, since it is smaller than the sum of its proper divisors (20534772184).

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

15243122216 is a wasteful number, since it uses less digits than its factorization.

15243122216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552186 (or 552182 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

Adding to 15243122216 its reverse (61222134251), we get a palindrome (76465256467).

The spelling of 15243122216 in words is "fifteen billion, two hundred forty-three million, one hundred twenty-two thousand, two hundred sixteen".