12162959999 has 4 divisors (see below), whose sum is σ = 12167536920. Its totient is φ = 12158383080.

The previous prime is 12162959993. The next prime is 12162960049. The reversal of 12162959999 is 99995926121.

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

It is a cyclic number.

It is not a de Polignac number, because 12162959999 - 2²⁰ = 12161911423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12162959993) by changing a digit.

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, 2284472 + ... + 2289789.

It is an arithmetic number, because the mean of its divisors is an integer number (3041884230).

Almost surely, 2^12162959999 is an apocalyptic number.

12162959999 is a deficient number, since it is larger than the sum of its proper divisors (4576921).

12162959999 is an equidigital number, since it uses as much as digits as its factorization.

12162959999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4576920.

The product of its digits is 7085880, while the sum is 62.

The spelling of 12162959999 in words is "twelve billion, one hundred sixty-two million, nine hundred fifty-nine thousand, nine hundred ninety-nine".