2399163866 has 8 divisors (see below), whose sum is σ = 3925904544. Its totient is φ = 1090529020.

The previous prime is 2399163863. The next prime is 2399163919. The reversal of 2399163866 is 6683619932.

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

It is not an unprimeable number, because it can be changed into a prime (2399163863) 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, 54526430 + ... + 54526473.

It is an arithmetic number, because the mean of its divisors is an integer number (490738068).

Almost surely, 2^2399163866 is an apocalyptic number.

2399163866 is a deficient number, since it is larger than the sum of its proper divisors (1526740678).

2399163866 is a wasteful number, since it uses less digits than its factorization.

2399163866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109052916.

The product of its digits is 2519424, while the sum is 53.

The square root of 2399163866 is about 48981.2603553645. The cubic root of 2399163866 is about 1338.7103999797.

The spelling of 2399163866 in words is "two billion, three hundred ninety-nine million, one hundred sixty-three thousand, eight hundred sixty-six".