11162615664 has 80 divisors (see below), whose sum is σ = 29178410240. Its totient is φ = 3676907520.

The previous prime is 11162615621. The next prime is 11162615671. The reversal of 11162615664 is 46651626111.

It is a happy number.

It is a congruent number.

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, 3998109 + ... + 4000899.

It is an arithmetic number, because the mean of its divisors is an integer number (364730128).

Almost surely, 2^11162615664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11162615664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14589205120).

11162615664 is an abundant number, since it is smaller than the sum of its proper divisors (18015794576).

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

11162615664 is a wasteful number, since it uses less digits than its factorization.

11162615664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3758 (or 3752 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The spelling of 11162615664 in words is "eleven billion, one hundred sixty-two million, six hundred fifteen thousand, six hundred sixty-four".