64166166 has 12 divisors (see below), whose sum is σ = 139026732. Its totient is φ = 21388716.

The previous prime is 64166147. The next prime is 64166213. The reversal of 64166166 is 66166146.

64166166 is a `hidden beast` number, since 641 + 6 + 6 + 1 + 6 + 6 = 666.

64166166 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 64166166.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1782376 + ... + 1782411.

It is an arithmetic number, because the mean of its divisors is an integer number (11585561).

Almost surely, 2^64166166 is an apocalyptic number.

64166166 is an abundant number, since it is smaller than the sum of its proper divisors (74860566).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64166166 is a wasteful number, since it uses less digits than its factorization.

64166166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3564795 (or 3564792 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 64166166 is about 8010.3786427359. The cubic root of 64166166 is about 400.3458799980.

The spelling of 64166166 in words is "sixty-four million, one hundred sixty-six thousand, one hundred sixty-six".