12205165243 has 8 divisors (see below), whose sum is σ = 12678868800. Its totient is φ = 11734984128.

The previous prime is 12205165207. The next prime is 12205165333. The reversal of 12205165243 is 34256150221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12205165243 - 2¹³ = 12205157051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12205166243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 873546 + ... + 887407.

It is an arithmetic number, because the mean of its divisors is an integer number (1584858600).

Almost surely, 2^12205165243 is an apocalyptic number.

12205165243 is a deficient number, since it is larger than the sum of its proper divisors (473703557).

12205165243 is a wasteful number, since it uses less digits than its factorization.

12205165243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1761221.

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 12205165243 in words is "twelve billion, two hundred five million, one hundred sixty-five thousand, two hundred forty-three".