20465275648715 has 16 divisors (see below), whose sum is σ = 25859437593600. Its totient is φ = 15505386848352.

The previous prime is 20465275648691. The next prime is 20465275648733. The reversal of 20465275648715 is 51784657256402.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20465275648715 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, 35391227 + ... + 35964836.

It is an arithmetic number, because the mean of its divisors is an integer number (1616214849600).

Almost surely, 2^{20465275648715} is an apocalyptic number.

20465275648715 is a deficient number, since it is larger than the sum of its proper divisors (5394161944885).

20465275648715 is a wasteful number, since it uses less digits than its factorization.

20465275648715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71359106.

The product of its (nonzero) digits is 112896000, while the sum is 62.

The spelling of 20465275648715 in words is "twenty trillion, four hundred sixty-five billion, two hundred seventy-five million, six hundred forty-eight thousand, seven hundred fifteen".