12156352066 has 32 divisors (see below), whose sum is σ = 19366079040. Its totient is φ = 5713073856.

The previous prime is 12156352007. The next prime is 12156352123. The reversal of 12156352066 is 66025365121.

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, 757720 + ... + 773596.

It is an arithmetic number, because the mean of its divisors is an integer number (605189970).

Almost surely, 2^12156352066 is an apocalyptic number.

12156352066 is a deficient number, since it is larger than the sum of its proper divisors (7209726974).

12156352066 is a wasteful number, since it uses less digits than its factorization.

12156352066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16258.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 12156352066 in words is "twelve billion, one hundred fifty-six million, three hundred fifty-two thousand, sixty-six".