12126162645 has 32 divisors (see below), whose sum is σ = 22825722240. Its totient is φ = 6086856960.

The previous prime is 12126162623. The next prime is 12126162673. The reversal of 12126162645 is 54626162121.

12126162645 is a `hidden beast` number, since 1 + 2 + 1 + 2 + 6 + 1 + 6 + 2 + 645 = 666.

It is not a de Polignac number, because 12126162645 - 2²¹ = 12124065493 is a prime.

It is a congruent number.

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, 2639571 + ... + 2644160.

It is an arithmetic number, because the mean of its divisors is an integer number (713303820).

Almost surely, 2^12126162645 is an apocalyptic number.

12126162645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12126162645 is a deficient number, since it is larger than the sum of its proper divisors (10699559595).

12126162645 is a wasteful number, since it uses less digits than its factorization.

12126162645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5283762 (or 5283756 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The spelling of 12126162645 in words is "twelve billion, one hundred twenty-six million, one hundred sixty-two thousand, six hundred forty-five".