11215504400 has 60 divisors (see below), whose sum is σ = 26956050000. Its totient is φ = 4484403840.

The previous prime is 11215504381. The next prime is 11215504409. The reversal of 11215504400 is 440551211.

It is not an unprimeable number, because it can be changed into a prime (11215504409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1491851 + ... + 1499349.

It is an arithmetic number, because the mean of its divisors is an integer number (449267500).

Almost surely, 2^11215504400 is an apocalyptic number.

11215504400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11215504400 is an abundant number, since it is smaller than the sum of its proper divisors (15740545600).

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

11215504400 is a wasteful number, since it uses less digits than its factorization.

11215504400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11256 (or 11245 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The spelling of 11215504400 in words is "eleven billion, two hundred fifteen million, five hundred four thousand, four hundred".