11544420400 has 30 divisors (see below), whose sum is σ = 27735470972. Its totient is φ = 4617768000.

The previous prime is 11544420359. The next prime is 11544420413. The reversal of 11544420400 is 402444511.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14430126 + ... + 14430925.

Almost surely, 2^11544420400 is an apocalyptic number.

11544420400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11544420400 is an abundant number, since it is smaller than the sum of its proper divisors (16191050572).

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

11544420400 is a wasteful number, since it uses less digits than its factorization.

11544420400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28861069 (or 28861058 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 11544420400 its reverse (402444511), we get a palindrome (11946864911).

The spelling of 11544420400 in words is "eleven billion, five hundred forty-four million, four hundred twenty thousand, four hundred".