660050005064 has 8 divisors (see below), whose sum is σ = 1237593759510. Its totient is φ = 330025002528.

The previous prime is 660050005037. The next prime is 660050005103. The reversal of 660050005064 is 460500050066.

It can be written as a sum of positive squares in only one way, i.e., 580445896900 + 79604108164 = 761870^2 + 282142^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 660050005064.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41253125309 + ... + 41253125324.

Almost surely, 2^660050005064 is an apocalyptic number.

It is an amenable number.

660050005064 is a deficient number, since it is larger than the sum of its proper divisors (577543754446).

660050005064 is a wasteful number, since it uses less digits than its factorization.

660050005064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82506250639 (or 82506250635 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 660050005064 in words is "six hundred sixty billion, fifty million, five thousand, sixty-four".