13110631605 has 48 divisors (see below), whose sum is σ = 23907312000. Its totient is φ = 6636755328.

The previous prime is 13110631553. The next prime is 13110631621. The reversal of 13110631605 is 50613601131.

13110631605 is a `hidden beast` number, since 13 + 1 + 10 + 6 + 31 + 605 = 666.

It is not a de Polignac number, because 13110631605 - 2⁷ = 13110631477 is a prime.

It is a super-2 number, since 2×13110631605² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8145 + ... + 162134.

It is an arithmetic number, because the mean of its divisors is an integer number (498069000).

Almost surely, 2^13110631605 is an apocalyptic number.

13110631605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13110631605 is a deficient number, since it is larger than the sum of its proper divisors (10796680395).

13110631605 is a wasteful number, since it uses less digits than its factorization.

13110631605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170378 (or 170375 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The spelling of 13110631605 in words is "thirteen billion, one hundred ten million, six hundred thirty-one thousand, six hundred five".