11634899520 has 112 divisors (see below), whose sum is σ = 36975409920. Its totient is φ = 3099734016.

The previous prime is 11634899453. The next prime is 11634899567. The reversal of 11634899520 is 2599843611.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 11634899520.

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, 1140201 + ... + 1150359.

Almost surely, 2^11634899520 is an apocalyptic number.

11634899520 is a gapful number since it is divisible by the number (10) 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 11634899520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18487704960).

11634899520 is an abundant number, since it is smaller than the sum of its proper divisors (25340510400).

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

11634899520 is a wasteful number, since it uses less digits than its factorization.

11634899520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11372 (or 11362 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 48.

The spelling of 11634899520 in words is "eleven billion, six hundred thirty-four million, eight hundred ninety-nine thousand, five hundred twenty".