12125545365 has 16 divisors (see below), whose sum is σ = 19548974016. Its totient is φ = 6417590400.

The previous prime is 12125545339. The next prime is 12125545379. The reversal of 12125545365 is 56354552121.

It is not a de Polignac number, because 12125545365 - 2¹⁰ = 12125544341 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3083416 + ... + 3087345.

It is an arithmetic number, because the mean of its divisors is an integer number (1221810876).

Almost surely, 2^12125545365 is an apocalyptic number.

12125545365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12125545365 is a deficient number, since it is larger than the sum of its proper divisors (7423428651).

12125545365 is a wasteful number, since it uses less digits than its factorization.

12125545365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6170900.

The product of its digits is 180000, while the sum is 39.

The spelling of 12125545365 in words is "twelve billion, one hundred twenty-five million, five hundred forty-five thousand, three hundred sixty-five".