1866063166 has 32 divisors (see below), whose sum is σ = 3157678080. Its totient is φ = 819386400.

The previous prime is 1866063149. The next prime is 1866063179. The reversal of 1866063166 is 6613606681.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 439140 + ... + 443368.

It is an arithmetic number, because the mean of its divisors is an integer number (98677440).

Almost surely, 2^1866063166 is an apocalyptic number.

1866063166 is a deficient number, since it is larger than the sum of its proper divisors (1291614914).

1866063166 is a wasteful number, since it uses less digits than its factorization.

1866063166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4920.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 1866063166 is about 43197.9532616998. The cubic root of 1866063166 is about 1231.1437938195.

The spelling of 1866063166 in words is "one billion, eight hundred sixty-six million, sixty-three thousand, one hundred sixty-six".