12880665514 has 4 divisors (see below), whose sum is σ = 19320998274. Its totient is φ = 6440332756.

The previous prime is 12880665481. The next prime is 12880665517. The reversal of 12880665514 is 41556608821.

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

It can be written as a sum of positive squares in only one way, i.e., 8400639025 + 4480026489 = 91655^2 + 66933^2 .

It is not an unprimeable number, because it can be changed into a prime (12880665517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3220166377 + ... + 3220166380.

Almost surely, 2^12880665514 is an apocalyptic number.

12880665514 is a deficient number, since it is larger than the sum of its proper divisors (6440332760).

12880665514 is an equidigital number, since it uses as much as digits as its factorization.

12880665514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6440332759.

The product of its (nonzero) digits is 460800, while the sum is 46.

The spelling of 12880665514 in words is "twelve billion, eight hundred eighty million, six hundred sixty-five thousand, five hundred fourteen".