12162504006549 has 48 divisors (see below), whose sum is σ = 19587934220400. Its totient is φ = 7220587143168.

The previous prime is 12162504006509. The next prime is 12162504006589. The reversal of 12162504006549 is 94560040526121.

12162504006549 is a `hidden beast` number, since 1 + 2 + 1 + 62 + 5 + 0 + 40 + 0 + 6 + 549 = 666.

It is an interprime number because it is at equal distance from previous prime (12162504006509) and next prime (12162504006589).

It can be written as a sum of positive squares in 8 ways, for example, as 4455717274449 + 7706786732100 = 2110857^2 + 2776110^2 .

It is not a de Polignac number, because 12162504006549 - 2²³ = 12162495617941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12162504006509) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2656567 + ... + 5601995.

It is an arithmetic number, because the mean of its divisors is an integer number (408081962925).

Almost surely, 2^{12162504006549} is an apocalyptic number.

It is an amenable number.

12162504006549 is a deficient number, since it is larger than the sum of its proper divisors (7425430213851).

12162504006549 is a wasteful number, since it uses less digits than its factorization.

12162504006549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2946694 (or 2946691 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The spelling of 12162504006549 in words is "twelve trillion, one hundred sixty-two billion, five hundred four million, six thousand, five hundred forty-nine".