63871166 has 16 divisors (see below), whose sum is σ = 100029600. Its totient is φ = 30548448.

The previous prime is 63871133. The next prime is 63871219. The reversal of 63871166 is 66117836.

It is a Curzon number.

It is a congruent 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, 1271 + ... + 11373.

It is an arithmetic number, because the mean of its divisors is an integer number (6251850).

Almost surely, 2^63871166 is an apocalyptic number.

63871166 is a deficient number, since it is larger than the sum of its proper divisors (36158434).

63871166 is a wasteful number, since it uses less digits than its factorization.

63871166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10243.

The product of its digits is 36288, while the sum is 38.

The square root of 63871166 is about 7991.9438186213. The cubic root of 63871166 is about 399.7314155297.

The spelling of 63871166 in words is "sixty-three million, eight hundred seventy-one thousand, one hundred sixty-six".