64005066 has 20 divisors (see below), whose sum is σ = 143419122. Its totient is φ = 21334968.

The previous prime is 64005041. The next prime is 64005077. The reversal of 64005066 is 66050046.

64005066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 55130625 + 8874441 = 7425^2 + 2979^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

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 9 ways as a sum of consecutive naturals, for example, 197385 + ... + 197708.

Almost surely, 2^64005066 is an apocalyptic number.

64005066 is an abundant number, since it is smaller than the sum of its proper divisors (79414056).

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

64005066 is a wasteful number, since it uses less digits than its factorization.

64005066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395107 (or 395098 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 64005066 is about 8000.3166187345. The cubic root of 64005066 is about 400.0105538882.

The spelling of 64005066 in words is "sixty-four million, five thousand, sixty-six".