13512012665 has 16 divisors (see below), whose sum is σ = 16432999680. Its totient is φ = 10664110080.

The previous prime is 13512012649. The next prime is 13512012713. The reversal of 13512012665 is 56621021531.

It is not a de Polignac number, because 13512012665 - 2⁴ = 13512012649 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 496697 + ... + 523193.

It is an arithmetic number, because the mean of its divisors is an integer number (1027062480).

Almost surely, 2^13512012665 is an apocalyptic number.

It is an amenable number.

13512012665 is a deficient number, since it is larger than the sum of its proper divisors (2920987015).

13512012665 is a wasteful number, since it uses less digits than its factorization.

13512012665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27872.

The product of its (nonzero) digits is 10800, while the sum is 32.

The spelling of 13512012665 in words is "thirteen billion, five hundred twelve million, twelve thousand, six hundred sixty-five".