12238511716 has 12 divisors (see below), whose sum is σ = 21613886140. Its totient is φ = 6063115680.

The previous prime is 12238511699. The next prime is 12238511723. The reversal of 12238511716 is 61711583221.

It can be written as a sum of positive squares in 2 ways, for example, as 4508585316 + 7729926400 = 67146^2 + 87920^2 .

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 3 ways as a sum of consecutive naturals, for example, 14034555 + ... + 14035426.

Almost surely, 2^12238511716 is an apocalyptic number.

It is an amenable number.

12238511716 is a deficient number, since it is larger than the sum of its proper divisors (9375374424).

12238511716 is a wasteful number, since it uses less digits than its factorization.

12238511716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28070094 (or 28070092 counting only the distinct ones).

The product of its digits is 20160, while the sum is 37.

The spelling of 12238511716 in words is "twelve billion, two hundred thirty-eight million, five hundred eleven thousand, seven hundred sixteen".