12116664878 has 8 divisors (see below), whose sum is σ = 18379211040. Its totient is φ = 5990261200.

The previous prime is 12116664823. The next prime is 12116664883. The reversal of 12116664878 is 87846661121.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34035398 + ... + 34035753.

It is an arithmetic number, because the mean of its divisors is an integer number (2297401380).

Almost surely, 2^12116664878 is an apocalyptic number.

12116664878 is a deficient number, since it is larger than the sum of its proper divisors (6262546162).

12116664878 is an equidigital number, since it uses as much as digits as its factorization.

12116664878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68071242.

The product of its digits is 774144, while the sum is 50.

The spelling of 12116664878 in words is "twelve billion, one hundred sixteen million, six hundred sixty-four thousand, eight hundred seventy-eight".