11516450400 has 1512 divisors, whose sum is σ = 54509886144. Its totient is φ = 2351462400.

The previous prime is 11516450389. The next prime is 11516450423. The reversal of 11516450400 is 405461511.

11516450400 is a `hidden beast` number, since 1 + 15 + 1 + 645 + 0 + 4 + 0 + 0 = 666.

11516450400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (1512).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 251 ways as a sum of consecutive naturals, for example, 371498385 + ... + 371498415.

It is an arithmetic number, because the mean of its divisors is an integer number (36051512).

Almost surely, 2^11516450400 is an apocalyptic number.

11516450400 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 11516450400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27254943072).

11516450400 is an abundant number, since it is smaller than the sum of its proper divisors (42993435744).

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

11516450400 is a wasteful number, since it uses less digits than its factorization.

11516450400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96 (or 61 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The spelling of 11516450400 in words is "eleven billion, five hundred sixteen million, four hundred fifty thousand, four hundred".