12644176046 has 4 divisors (see below), whose sum is σ = 18966264072. Its totient is φ = 6322088022.

The previous prime is 12644175991. The next prime is 12644176067. The reversal of 12644176046 is 64067144621.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 12644175994 and 12644176012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3161044010 + ... + 3161044013.

It is an arithmetic number, because the mean of its divisors is an integer number (4741566018).

Almost surely, 2^12644176046 is an apocalyptic number.

12644176046 is a deficient number, since it is larger than the sum of its proper divisors (6322088026).

12644176046 is an equidigital number, since it uses as much as digits as its factorization.

12644176046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6322088025.

The product of its (nonzero) digits is 193536, while the sum is 41.

The spelling of 12644176046 in words is "twelve billion, six hundred forty-four million, one hundred seventy-six thousand, forty-six".