11659337118 has 144 divisors (see below), whose sum is σ = 31478450640. Its totient is φ = 3089560320.

The previous prime is 11659337117. The next prime is 11659337153. The reversal of 11659337118 is 81173395611.

11659337118 is a `hidden beast` number, since 1 + 16 + 593 + 37 + 1 + 18 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11659337113) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 527130 + ... + 548802.

Almost surely, 2^11659337118 is an apocalyptic number.

11659337118 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11659337118, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15739225320).

11659337118 is an abundant number, since it is smaller than the sum of its proper divisors (19819113522).

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

11659337118 is a wasteful number, since it uses less digits than its factorization.

11659337118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21735 (or 21721 counting only the distinct ones).

The product of its digits is 136080, while the sum is 45.

The spelling of 11659337118 in words is "eleven billion, six hundred fifty-nine million, three hundred thirty-seven thousand, one hundred eighteen".