13540144555 has 16 divisors (see below), whose sum is σ = 18582681600. Its totient is φ = 9278000352.

The previous prime is 13540144523. The next prime is 13540144571. The reversal of 13540144555 is 55544104531.

It is a cyclic number.

It is not a de Polignac number, because 13540144555 - 2⁵ = 13540144523 is a prime.

It is a super-2 number, since 2×13540144555² (a number of 21 digits) contains 22 as substring.

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, 89299 + ... + 187228.

It is an arithmetic number, because the mean of its divisors is an integer number (1161417600).

Almost surely, 2^13540144555 is an apocalyptic number.

13540144555 is a deficient number, since it is larger than the sum of its proper divisors (5042537045).

13540144555 is a wasteful number, since it uses less digits than its factorization.

13540144555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277938.

The product of its (nonzero) digits is 120000, while the sum is 37.

The spelling of 13540144555 in words is "thirteen billion, five hundred forty million, one hundred forty-four thousand, five hundred fifty-five".