64666460022206 has 16 divisors (see below), whose sum is σ = 114432814049280. Its totient is φ = 26820190792440.

The previous prime is 64666460022187. The next prime is 64666460022293. The reversal of 64666460022206 is 60222006466646.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74500529546 + ... + 74500530413.

It is an arithmetic number, because the mean of its divisors is an integer number (7152050878080).

Almost surely, 2^{64666460022206} is an apocalyptic number.

64666460022206 is a deficient number, since it is larger than the sum of its proper divisors (49766354027074).

64666460022206 is a wasteful number, since it uses less digits than its factorization.

64666460022206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149001059999.

The product of its (nonzero) digits is 5971968, while the sum is 50.

The spelling of 64666460022206 in words is "sixty-four trillion, six hundred sixty-six billion, four hundred sixty million, twenty-two thousand, two hundred six".