10115511105 has 32 divisors (see below), whose sum is σ = 19584993024. Its totient is φ = 4352219136.

The previous prime is 10115511097. The next prime is 10115511149. The reversal of 10115511105 is 50111551101.

It is not a de Polignac number, because 10115511105 - 2³ = 10115511097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2831692 + ... + 2835261.

It is an arithmetic number, because the mean of its divisors is an integer number (612031032).

Almost surely, 2^10115511105 is an apocalyptic number.

10115511105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10115511105 is a deficient number, since it is larger than the sum of its proper divisors (9469481919).

10115511105 is a wasteful number, since it uses less digits than its factorization.

10115511105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5666985.

The product of its (nonzero) digits is 125, while the sum is 21.

The spelling of 10115511105 in words is "ten billion, one hundred fifteen million, five hundred eleven thousand, one hundred five".