12245891599 has 4 divisors (see below), whose sum is σ = 12248490240. Its totient is φ = 12243292960.

The previous prime is 12245891557. The next prime is 12245891617. The reversal of 12245891599 is 99519854221.

It is a happy number.

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-12245891599 is a prime.

It is a super-2 number, since 2×12245891599² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12245831599) 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, 1292239 + ... + 1301680.

It is an arithmetic number, because the mean of its divisors is an integer number (3062122560).

Almost surely, 2^12245891599 is an apocalyptic number.

12245891599 is a deficient number, since it is larger than the sum of its proper divisors (2598641).

12245891599 is an equidigital number, since it uses as much as digits as its factorization.

12245891599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2598640.

The product of its digits is 2332800, while the sum is 55.

The spelling of 12245891599 in words is "twelve billion, two hundred forty-five million, eight hundred ninety-one thousand, five hundred ninety-nine".