12660736054 has 4 divisors (see below), whose sum is σ = 18991104084. Its totient is φ = 6330368026.

The previous prime is 12660736031. The next prime is 12660736063. The reversal of 12660736054 is 45063706621.

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

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 12660735998 and 12660736016.

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, 3165184012 + ... + 3165184015.

It is an arithmetic number, because the mean of its divisors is an integer number (4747776021).

Almost surely, 2^12660736054 is an apocalyptic number.

12660736054 is a deficient number, since it is larger than the sum of its proper divisors (6330368030).

12660736054 is an equidigital number, since it uses as much as digits as its factorization.

12660736054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6330368029.

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 12660736054 in words is "twelve billion, six hundred sixty million, seven hundred thirty-six thousand, fifty-four".