12151025108169 has 4 divisors (see below), whose sum is σ = 16201366810896. Its totient is φ = 8100683405444.

The previous prime is 12151025108147. The next prime is 12151025108177. The reversal of 12151025108169 is 96180152015121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12151025108169 - 2²⁵ = 12150991553737 is a prime.

It is a super-2 number, since 2×12151025108169² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12151025108169.

It is not an unprimeable number, because it can be changed into a prime (12151025103169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2025170851359 + ... + 2025170851364.

It is an arithmetic number, because the mean of its divisors is an integer number (4050341702724).

Almost surely, 2^{12151025108169} is an apocalyptic number.

It is an amenable number.

12151025108169 is a deficient number, since it is larger than the sum of its proper divisors (4050341702727).

12151025108169 is an equidigital number, since it uses as much as digits as its factorization.

12151025108169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4050341702726.

The product of its (nonzero) digits is 43200, while the sum is 42.

The spelling of 12151025108169 in words is "twelve trillion, one hundred fifty-one billion, twenty-five million, one hundred eight thousand, one hundred sixty-nine".