13555158800 has 30 divisors (see below), whose sum is σ = 32566269978. Its totient is φ = 5422063360.

The previous prime is 13555158781. The next prime is 13555158821. The reversal of 13555158800 is 885155531.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1918790416 + 11636368384 = 43804^2 + 107872^2 .

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, 16943549 + ... + 16944348.

Almost surely, 2^13555158800 is an apocalyptic number.

13555158800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13555158800 is an abundant number, since it is smaller than the sum of its proper divisors (19011111178).

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

13555158800 is a wasteful number, since it uses less digits than its factorization.

13555158800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33887915 (or 33887904 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 41.

The spelling of 13555158800 in words is "thirteen billion, five hundred fifty-five million, one hundred fifty-eight thousand, eight hundred".