66046066 has 4 divisors (see below), whose sum is σ = 99069102. Its totient is φ = 33023032.

The previous prime is 66046063. The next prime is 66046067. The reversal of 66046066 is 66064066.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 43758225 + 22287841 = 6615^2 + 4721^2 .

It is not an unprimeable number, because it can be changed into a prime (66046061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16511515 + ... + 16511518.

Almost surely, 2^66046066 is an apocalyptic number.

66046066 is a deficient number, since it is larger than the sum of its proper divisors (33023036).

66046066 is a wasteful number, since it uses less digits than its factorization.

66046066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33023035.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 66046066 is about 8126.8730764052. The cubic root of 66046066 is about 404.2180022983.

The spelling of 66046066 in words is "sixty-six million, forty-six thousand, sixty-six", and thus it is an eban number.