13855557023 has 16 divisors (see below), whose sum is σ = 17511104256. Its totient is φ = 10648635840.

The previous prime is 13855557011. The next prime is 13855557047. The reversal of 13855557023 is 32075555831.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13855557023 - 2⁴ = 13855557007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13855557823) 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, 1226861 + ... + 1238102.

It is an arithmetic number, because the mean of its divisors is an integer number (1094444016).

Almost surely, 2^13855557023 is an apocalyptic number.

13855557023 is a deficient number, since it is larger than the sum of its proper divisors (3655547233).

13855557023 is a wasteful number, since it uses less digits than its factorization.

13855557023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2465054.

The product of its (nonzero) digits is 630000, while the sum is 44.

The spelling of 13855557023 in words is "thirteen billion, eight hundred fifty-five million, five hundred fifty-seven thousand, twenty-three".