12880665045 has 48 divisors (see below), whose sum is σ = 23465070720. Its totient is φ = 6523659648.

The previous prime is 12880665011. The next prime is 12880665059. The reversal of 12880665045 is 54056608821.

12880665045 is a `hidden beast` number, since 1 + 2 + 8 + 80 + 66 + 504 + 5 = 666.

It is not a de Polignac number, because 12880665045 - 2⁶ = 12880664981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 99099 + ... + 188631.

It is an arithmetic number, because the mean of its divisors is an integer number (488855640).

Almost surely, 2^12880665045 is an apocalyptic number.

12880665045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12880665045 is a deficient number, since it is larger than the sum of its proper divisors (10584405675).

12880665045 is a wasteful number, since it uses less digits than its factorization.

12880665045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89706 (or 89703 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The spelling of 12880665045 in words is "twelve billion, eight hundred eighty million, six hundred sixty-five thousand, forty-five".