64066605 has 16 divisors (see below), whose sum is σ = 102617280. Its totient is φ = 34131968.

The previous prime is 64066577. The next prime is 64066609. The reversal of 64066605 is 50666046.

64066605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 64066605 - 2¹³ = 64058413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64066609) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 17581 + ... + 20909.

It is an arithmetic number, because the mean of its divisors is an integer number (6413580).

Almost surely, 2^64066605 is an apocalyptic number.

It is an amenable number.

64066605 is a deficient number, since it is larger than the sum of its proper divisors (38550675).

64066605 is a wasteful number, since it uses less digits than its factorization.

64066605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4620.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 64066605 is about 8004.1617300002. The cubic root of 64066605 is about 400.1387123083.

The spelling of 64066605 in words is "sixty-four million, sixty-six thousand, six hundred five".