11540555013 has 32 divisors (see below), whose sum is σ = 16987791744. Its totient is φ = 6924932352.

The previous prime is 11540554997. The next prime is 11540555023. The reversal of 11540555013 is 31055504511.

It is not a de Polignac number, because 11540555013 - 2⁴ = 11540554997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11540555023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 319795 + ... + 354047.

It is an arithmetic number, because the mean of its divisors is an integer number (530868492).

Almost surely, 2^11540555013 is an apocalyptic number.

11540555013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11540555013 is a deficient number, since it is larger than the sum of its proper divisors (5447236731).

11540555013 is a wasteful number, since it uses less digits than its factorization.

11540555013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34485.

The product of its (nonzero) digits is 7500, while the sum is 30.

The spelling of 11540555013 in words is "eleven billion, five hundred forty million, five hundred fifty-five thousand, thirteen".