12665251391290 has 16 divisors (see below), whose sum is σ = 23327625819168. Its totient is φ = 4948284264336.

The previous prime is 12665251391269. The next prime is 12665251391293. The reversal of 12665251391290 is 9219315256621.

It is not an unprimeable number, because it can be changed into a prime (12665251391293) 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, 14727036072 + ... + 14727036931.

It is an arithmetic number, because the mean of its divisors is an integer number (1457976613698).

Almost surely, 2^{12665251391290} is an apocalyptic number.

12665251391290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12665251391290 is a deficient number, since it is larger than the sum of its proper divisors (10662374427878).

12665251391290 is a wasteful number, since it uses less digits than its factorization.

12665251391290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29454073053.

The product of its (nonzero) digits is 1749600, while the sum is 52.

The spelling of 12665251391290 in words is "twelve trillion, six hundred sixty-five billion, two hundred fifty-one million, three hundred ninety-one thousand, two hundred ninety".