11550013992 has 256 divisors, whose sum is σ = 35663846400. Its totient is φ = 3434400000.

The previous prime is 11550013967. The next prime is 11550014027. The reversal of 11550013992 is 29931005511.

11550013992 is a `hidden beast` number, since 1 + 1 + 550 + 0 + 13 + 9 + 92 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 46015867 + ... + 46016117.

It is an arithmetic number, because the mean of its divisors is an integer number (139311900).

Almost surely, 2^11550013992 is an apocalyptic number.

11550013992 is a gapful number since it is divisible by the number (12) 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 11550013992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17831923200).

11550013992 is an abundant number, since it is smaller than the sum of its proper divisors (24113832408).

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

11550013992 is a wasteful number, since it uses less digits than its factorization.

11550013992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565 (or 555 counting only the distinct ones).

The product of its (nonzero) digits is 12150, while the sum is 36.

The spelling of 11550013992 in words is "eleven billion, five hundred fifty million, thirteen thousand, nine hundred ninety-two".