20465112315 has 16 divisors (see below), whose sum is σ = 32881190400. Its totient is φ = 10869056352.

The previous prime is 20465112301. The next prime is 20465112323. The reversal of 20465112315 is 51321156402.

It is not a de Polignac number, because 20465112315 - 2⁴ = 20465112299 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2850685 + ... + 2857854.

It is an arithmetic number, because the mean of its divisors is an integer number (2055074400).

Almost surely, 2^20465112315 is an apocalyptic number.

20465112315 is a deficient number, since it is larger than the sum of its proper divisors (12416078085).

20465112315 is a wasteful number, since it uses less digits than its factorization.

20465112315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5708786.

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 20465112315 its reverse (51321156402), we get a palindrome (71786268717).

The spelling of 20465112315 in words is "twenty billion, four hundred sixty-five million, one hundred twelve thousand, three hundred fifteen".