113166398905 has 12 divisors (see below), whose sum is σ = 157971055140. Its totient is φ = 77599816224.

The previous prime is 113166398879. The next prime is 113166398909. The reversal of 113166398905 is 509893661311.

It can be written as a sum of positive squares in 2 ways, for example, as 26004465081 + 87161933824 = 161259^2 + 295232^2 .

It is not a de Polignac number, because 113166398905 - 2²¹ = 113164301753 is a prime.

It is a super-2 number, since 2×113166398905² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (113166398909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 230951590 + ... + 230952079.

It is an arithmetic number, because the mean of its divisors is an integer number (13164254595).

Almost surely, 2^113166398905 is an apocalyptic number.

It is an amenable number.

113166398905 is a deficient number, since it is larger than the sum of its proper divisors (44804656235).

113166398905 is an equidigital number, since it uses as much as digits as its factorization.

113166398905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461903688 (or 461903681 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 52.

The spelling of 113166398905 in words is "one hundred thirteen billion, one hundred sixty-six million, three hundred ninety-eight thousand, nine hundred five".