64016066 has 4 divisors (see below), whose sum is σ = 96024102. Its totient is φ = 32008032.

The previous prime is 64016059. The next prime is 64016087. The reversal of 64016066 is 66061046.

64016066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 50481025 + 13535041 = 7105^2 + 3679^2 .

It is a super-2 number, since 2×64016066² = 8196113412232712, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 16004015 + ... + 16004018.

Almost surely, 2^64016066 is an apocalyptic number.

64016066 is a deficient number, since it is larger than the sum of its proper divisors (32008036).

64016066 is a wasteful number, since it uses less digits than its factorization.

64016066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32008035.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 64016066 is about 8001.0040619912. The cubic root of 64016066 is about 400.0334680330.

The spelling of 64016066 in words is "sixty-four million, sixteen thousand, sixty-six".