12166025002425 has 72 divisors (see below), whose sum is σ = 24910564512704. Its totient is φ = 5560069495680.

The previous prime is 12166025002379. The next prime is 12166025002487. The reversal of 12166025002425 is 52420052066121.

12166025002425 is a `hidden beast` number, since 1 + 2 + 1 + 6 + 602 + 5 + 0 + 0 + 2 + 42 + 5 = 666.

It is not a de Polignac number, because 12166025002425 - 2¹⁸ = 12166024740281 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12166025002425.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4621494 + ... + 6759456.

Almost surely, 2^{12166025002425} is an apocalyptic number.

12166025002425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12166025002425 is an abundant number, since it is smaller than the sum of its proper divisors (12744539510279).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12166025002425 is a wasteful number, since it uses less digits than its factorization.

12166025002425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2141599 (or 2141591 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

Adding to 12166025002425 its reverse (52420052066121), we get a palindrome (64586077068546).

The spelling of 12166025002425 in words is "twelve trillion, one hundred sixty-six billion, twenty-five million, two thousand, four hundred twenty-five".