12113663445 has 24 divisors (see below), whose sum is σ = 22612172856. Its totient is φ = 5963649408.

The previous prime is 12113663423. The next prime is 12113663453. The reversal of 12113663445 is 54436631121.

12113663445 is a `hidden beast` number, since 1 + 2 + 1 + 13 + 6 + 634 + 4 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2334629124 + 9779034321 = 48318^2 + 98889^2 .

It is not a de Polignac number, because 12113663445 - 2⁵ = 12113663413 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10352974 + ... + 10354143.

It is an arithmetic number, because the mean of its divisors is an integer number (942173869).

Almost surely, 2^12113663445 is an apocalyptic number.

12113663445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12113663445 is a deficient number, since it is larger than the sum of its proper divisors (10498509411).

12113663445 is a wasteful number, since it uses less digits than its factorization.

12113663445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20707141 (or 20707138 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The spelling of 12113663445 in words is "twelve billion, one hundred thirteen million, six hundred sixty-three thousand, four hundred forty-five".