11659326516 has 48 divisors (see below), whose sum is σ = 31818830400. Its totient is φ = 3681891936.

The previous prime is 11659326509. The next prime is 11659326587. The reversal of 11659326516 is 61562395611.

11659326516 is a `hidden beast` number, since 1 + 1 + 6 + 593 + 2 + 6 + 51 + 6 = 666.

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, 2838915 + ... + 2843018.

It is an arithmetic number, because the mean of its divisors is an integer number (662892300).

Almost surely, 2^11659326516 is an apocalyptic number.

It is an amenable number.

11659326516 is an abundant number, since it is smaller than the sum of its proper divisors (20159503884).

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

11659326516 is a wasteful number, since it uses less digits than its factorization.

11659326516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5681965 (or 5681957 counting only the distinct ones).

The product of its digits is 291600, while the sum is 45.

The spelling of 11659326516 in words is "eleven billion, six hundred fifty-nine million, three hundred twenty-six thousand, five hundred sixteen".