13158031605 has 16 divisors (see below), whose sum is σ = 21542452800. Its totient is φ = 6854416128.

The previous prime is 13158031589. The next prime is 13158031643. The reversal of 13158031605 is 50613085131.

It is not a de Polignac number, because 13158031605 - 2⁴ = 13158031589 is a prime.

It is a Curzon number.

It is a congruent number.

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, 10199380 + ... + 10200669.

It is an arithmetic number, because the mean of its divisors is an integer number (1346403300).

Almost surely, 2^13158031605 is an apocalyptic number.

13158031605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13158031605 is a deficient number, since it is larger than the sum of its proper divisors (8384421195).

13158031605 is a wasteful number, since it uses less digits than its factorization.

13158031605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20400100.

The product of its (nonzero) digits is 10800, while the sum is 33.

The spelling of 13158031605 in words is "thirteen billion, one hundred fifty-eight million, thirty-one thousand, six hundred five".