13255540144 has 80 divisors (see below), whose sum is σ = 32224294656. Its totient is φ = 5131526400.

The previous prime is 13255540127. The next prime is 13255540231. The reversal of 13255540144 is 44104555231.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159159 + ... + 227689.

Almost surely, 2^13255540144 is an apocalyptic number.

13255540144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13255540144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16112147328).

13255540144 is an abundant number, since it is smaller than the sum of its proper divisors (18968754512).

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

13255540144 is a wasteful number, since it uses less digits than its factorization.

13255540144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68714 (or 68708 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 34.

The spelling of 13255540144 in words is "thirteen billion, two hundred fifty-five million, five hundred forty thousand, one hundred forty-four".