1230618866 has 16 divisors (see below), whose sum is σ = 1967683200. Its totient is φ = 575544528.

The previous prime is 1230618833. The next prime is 1230618881. The reversal of 1230618866 is 6688160321.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201965 + ... + 207968.

It is an arithmetic number, because the mean of its divisors is an integer number (122980200).

Almost surely, 2^1230618866 is an apocalyptic number.

1230618866 is a deficient number, since it is larger than the sum of its proper divisors (737064334).

1230618866 is a wasteful number, since it uses less digits than its factorization.

1230618866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410033.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 1230618866 is about 35080.1776791395. The cubic root of 1230618866 is about 1071.6209356518.

The spelling of 1230618866 in words is "one billion, two hundred thirty million, six hundred eighteen thousand, eight hundred sixty-six".