12665045043 has 36 divisors (see below), whose sum is σ = 21340266480. Its totient is φ = 7216919136.

The previous prime is 12665044993. The next prime is 12665045047. The reversal of 12665045043 is 34054056621.

12665045043 is a `hidden beast` number, since 1 + 2 + 66 + 504 + 50 + 43 = 666.

It is not a de Polignac number, because 12665045043 - 2¹³ = 12665036851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12665044989 and 12665045007.

It is not an unprimeable number, because it can be changed into a prime (12665045047) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 118321 + ... + 198317.

It is an arithmetic number, because the mean of its divisors is an integer number (592785180).

Almost surely, 2^12665045043 is an apocalyptic number.

12665045043 is a deficient number, since it is larger than the sum of its proper divisors (8675221437).

12665045043 is a wasteful number, since it uses less digits than its factorization.

12665045043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80376 (or 80366 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 12665045043 in words is "twelve billion, six hundred sixty-five million, forty-five thousand, forty-three".