12156154156 has 12 divisors (see below), whose sum is σ = 21274104600. Its totient is φ = 6077838560.

The previous prime is 12156154133. The next prime is 12156154163. The reversal of 12156154156 is 65145165121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106416 + ... + 188776.

It is an arithmetic number, because the mean of its divisors is an integer number (1772842050).

Almost surely, 2^12156154156 is an apocalyptic number.

It is an amenable number.

12156154156 is a deficient number, since it is larger than the sum of its proper divisors (9117950444).

12156154156 is a wasteful number, since it uses less digits than its factorization.

12156154156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119264 (or 119262 counting only the distinct ones).

The product of its digits is 36000, while the sum is 37.

The spelling of 12156154156 in words is "twelve billion, one hundred fifty-six million, one hundred fifty-four thousand, one hundred fifty-six".