12660738499 has 8 divisors (see below), whose sum is σ = 12751460352. Its totient is φ = 12570271560.

The previous prime is 12660738487. The next prime is 12660738533. The reversal of 12660738499 is 99483706621.

12660738499 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12660738499 - 2⁷ = 12660738371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12660733499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36522 + ... + 163264.

It is an arithmetic number, because the mean of its divisors is an integer number (1593932544).

Almost surely, 2^12660738499 is an apocalyptic number.

12660738499 is a deficient number, since it is larger than the sum of its proper divisors (90721853).

12660738499 is a wasteful number, since it uses less digits than its factorization.

12660738499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127457.

The product of its (nonzero) digits is 3919104, while the sum is 55.

The spelling of 12660738499 in words is "twelve billion, six hundred sixty million, seven hundred thirty-eight thousand, four hundred ninety-nine".