65766166 has 8 divisors (see below), whose sum is σ = 104452200. Its totient is φ = 30948768.

The previous prime is 65766161. The next prime is 65766167. The reversal of 65766166 is 66166756.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65766161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 967116 + ... + 967183.

It is an arithmetic number, because the mean of its divisors is an integer number (13056525).

Almost surely, 2^65766166 is an apocalyptic number.

65766166 is a deficient number, since it is larger than the sum of its proper divisors (38686034).

65766166 is a wasteful number, since it uses less digits than its factorization.

65766166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1934318.

The product of its digits is 272160, while the sum is 43.

The square root of 65766166 is about 8109.6341471117. The cubic root of 65766166 is about 403.6461750308.

The spelling of 65766166 in words is "sixty-five million, seven hundred sixty-six thousand, one hundred sixty-six".