11615438562 has 64 divisors (see below), whose sum is σ = 28735795200. Its totient is φ = 3047989824.

The previous prime is 11615438543. The next prime is 11615438573. The reversal of 11615438562 is 26583451611.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55203 + ... + 162105.

It is an arithmetic number, because the mean of its divisors is an integer number (448996800).

Almost surely, 2^11615438562 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11615438562, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14367897600).

11615438562 is an abundant number, since it is smaller than the sum of its proper divisors (17120356638).

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

11615438562 is a wasteful number, since it uses less digits than its factorization.

11615438562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107127.

The product of its digits is 172800, while the sum is 42.

The spelling of 11615438562 in words is "eleven billion, six hundred fifteen million, four hundred thirty-eight thousand, five hundred sixty-two".