13557240911 has 16 divisors (see below), whose sum is σ = 14388602880. Its totient is φ = 12746337120.

The previous prime is 13557240901. The next prime is 13557240919. The reversal of 13557240911 is 11904275531.

It is a cyclic number.

It is not a de Polignac number, because 13557240911 - 2²² = 13553046607 is a prime.

It is a super-2 number, since 2×13557240911² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13557240919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2920130 + ... + 2924768.

It is an arithmetic number, because the mean of its divisors is an integer number (899287680).

Almost surely, 2^13557240911 is an apocalyptic number.

13557240911 is a deficient number, since it is larger than the sum of its proper divisors (831361969).

13557240911 is a wasteful number, since it uses less digits than its factorization.

13557240911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6806.

The product of its (nonzero) digits is 37800, while the sum is 38.

The spelling of 13557240911 in words is "thirteen billion, five hundred fifty-seven million, two hundred forty thousand, nine hundred eleven".