13015222416 has 180 divisors, whose sum is σ = 43517456892. Its totient is φ = 3618058752.

The previous prime is 13015222397. The next prime is 13015222427. The reversal of 13015222416 is 61422251031.

13015222416 is a `hidden beast` number, since 13 + 0 + 15 + 222 + 416 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7056000000 + 5959222416 = 84000^2 + 77196^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13015222416.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 236146 + ... + 285998.

Almost surely, 2^13015222416 is an apocalyptic number.

13015222416 is a gapful number since it is divisible by the number (16) 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 13015222416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21758728446).

13015222416 is an abundant number, since it is smaller than the sum of its proper divisors (30502234476).

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

13015222416 is a wasteful number, since it uses less digits than its factorization.

13015222416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49918 (or 49902 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 13015222416 its reverse (61422251031), we get a palindrome (74437473447).

The spelling of 13015222416 in words is "thirteen billion, fifteen million, two hundred twenty-two thousand, four hundred sixteen".