660050005066 has 4 divisors (see below), whose sum is σ = 990075007602. Its totient is φ = 330025002532.

The previous prime is 660050005037. The next prime is 660050005103. The reversal of 660050005066 is 660500050066.

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., 484317173041 + 175732832025 = 695929^2 + 419205^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165012501265 + ... + 165012501268.

Almost surely, 2^660050005066 is an apocalyptic number.

660050005066 is a deficient number, since it is larger than the sum of its proper divisors (330025002536).

660050005066 is a wasteful number, since it uses less digits than its factorization.

660050005066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330025002535.

The product of its (nonzero) digits is 32400, while the sum is 34.

The spelling of 660050005066 in words is "six hundred sixty billion, fifty million, five thousand, sixty-six".