12153711218 has 32 divisors (see below), whose sum is σ = 20380600512. Its totient is φ = 5388760000.

The previous prime is 12153711203. The next prime is 12153711223. The reversal of 12153711218 is 81211735121.

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, 171593 + ... + 231843.

It is an arithmetic number, because the mean of its divisors is an integer number (636893766).

Almost surely, 2^12153711218 is an apocalyptic number.

12153711218 is a deficient number, since it is larger than the sum of its proper divisors (8226889294).

12153711218 is a wasteful number, since it uses less digits than its factorization.

12153711218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60490.

The product of its digits is 3360, while the sum is 32.

The spelling of 12153711218 in words is "twelve billion, one hundred fifty-three million, seven hundred eleven thousand, two hundred eighteen".