12156051725 has 12 divisors (see below), whose sum is σ = 15328989120. Its totient is φ = 9560012400.

The previous prime is 12156051707. The next prime is 12156051749. The reversal of 12156051725 is 52715065121.

It is not a de Polignac number, because 12156051725 - 2¹⁰ = 12156050701 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4119221 + ... + 4122170.

It is an arithmetic number, because the mean of its divisors is an integer number (1277415760).

Almost surely, 2^12156051725 is an apocalyptic number.

It is an amenable number.

12156051725 is a deficient number, since it is larger than the sum of its proper divisors (3172937395).

12156051725 is an equidigital number, since it uses as much as digits as its factorization.

12156051725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8241460 (or 8241455 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 35.

The spelling of 12156051725 in words is "twelve billion, one hundred fifty-six million, fifty-one thousand, seven hundred twenty-five".