12116450051 has 4 divisors (see below), whose sum is σ = 12443921712. Its totient is φ = 11788978392.

The previous prime is 12116450033. The next prime is 12116450089. The reversal of 12116450051 is 15005461121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12116450051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12116450051.

It is not an unprimeable number, because it can be changed into a prime (12116450251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163735775 + ... + 163735848.

It is an arithmetic number, because the mean of its divisors is an integer number (3110980428).

Almost surely, 2^12116450051 is an apocalyptic number.

12116450051 is a deficient number, since it is larger than the sum of its proper divisors (327471661).

12116450051 is an equidigital number, since it uses as much as digits as its factorization.

12116450051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327471660.

The product of its (nonzero) digits is 1200, while the sum is 26.

The spelling of 12116450051 in words is "twelve billion, one hundred sixteen million, four hundred fifty thousand, fifty-one".