11557299400 has 24 divisors (see below), whose sum is σ = 26870721570. Its totient is φ = 4622919680.

The previous prime is 11557299373. The next prime is 11557299401. The reversal of 11557299400 is 499275511.

It can be written as a sum of positive squares in 3 ways, for example, as 11123077156 + 434222244 = 105466^2 + 20838^2 .

It is not an unprimeable number, because it can be changed into a prime (11557299401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28893049 + ... + 28893448.

Almost surely, 2^11557299400 is an apocalyptic number.

11557299400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11557299400 is an abundant number, since it is smaller than the sum of its proper divisors (15313422170).

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

11557299400 is a wasteful number, since it uses less digits than its factorization.

11557299400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57786513 (or 57786504 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 43.

The spelling of 11557299400 in words is "eleven billion, five hundred fifty-seven million, two hundred ninety-nine thousand, four hundred".