84661166 has 16 divisors (see below), whose sum is σ = 129102768. Its totient is φ = 41630400.

The previous prime is 84661141. The next prime is 84661177. The reversal of 84661166 is 66116648.

It is a happy 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, 71096 + ... + 72276.

It is an arithmetic number, because the mean of its divisors is an integer number (8068923).

Almost surely, 2^84661166 is an apocalyptic number.

84661166 is a deficient number, since it is larger than the sum of its proper divisors (44441602).

84661166 is a wasteful number, since it uses less digits than its factorization.

84661166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1747.

The product of its digits is 41472, while the sum is 38.

The square root of 84661166 is about 9201.1502541802. The cubic root of 84661166 is about 439.0979557011.

The spelling of 84661166 in words is "eighty-four million, six hundred sixty-one thousand, one hundred sixty-six".