12665263364 has 24 divisors (see below), whose sum is σ = 25273219608. Its totient is φ = 5501652480.

The previous prime is 12665263357. The next prime is 12665263367. The reversal of 12665263364 is 46336256621.

It can be written as a sum of positive squares in 4 ways, for example, as 3744460864 + 8920802500 = 61192^2 + 94450^2 .

It is not an unprimeable number, because it can be changed into a prime (12665263367) 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, 7162727 + ... + 7164494.

It is an arithmetic number, because the mean of its divisors is an integer number (1053050817).

Almost surely, 2^12665263364 is an apocalyptic number.

It is an amenable number.

12665263364 is a deficient number, since it is larger than the sum of its proper divisors (12607956244).

12665263364 is a wasteful number, since it uses less digits than its factorization.

12665263364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14327255 (or 14327253 counting only the distinct ones).

The product of its digits is 933120, while the sum is 44.

The spelling of 12665263364 in words is "twelve billion, six hundred sixty-five million, two hundred sixty-three thousand, three hundred sixty-four".