12156693577 has 8 divisors (see below), whose sum is σ = 14083684736. Its totient is φ = 10277282592.

The previous prime is 12156693559. The next prime is 12156693589. The reversal of 12156693577 is 77539665121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12156693577 - 2²³ = 12148304969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12156693517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11894493 + ... + 11895514.

It is an arithmetic number, because the mean of its divisors is an integer number (1760460592).

Almost surely, 2^12156693577 is an apocalyptic number.

It is an amenable number.

12156693577 is a deficient number, since it is larger than the sum of its proper divisors (1926991159).

12156693577 is an equidigital number, since it uses as much as digits as its factorization.

12156693577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23790087.

The product of its digits is 2381400, while the sum is 52.

The spelling of 12156693577 in words is "twelve billion, one hundred fifty-six million, six hundred ninety-three thousand, five hundred seventy-seven".