11555350400 has 96 divisors (see below), whose sum is σ = 31140451080. Its totient is φ = 4201932800.

The previous prime is 11555350369. The next prime is 11555350451. The reversal of 11555350400 is 405355511.

It is a super-2 number, since 2×11555350400² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 128939 + ... + 199338.

Almost surely, 2^11555350400 is an apocalyptic number.

11555350400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11555350400 is an abundant number, since it is smaller than the sum of its proper divisors (19585100680).

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

11555350400 is a wasteful number, since it uses less digits than its factorization.

11555350400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328312 (or 328295 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 29.

The spelling of 11555350400 in words is "eleven billion, five hundred fifty-five million, three hundred fifty thousand, four hundred".