66050560001 has 16 divisors (see below), whose sum is σ = 66996493200. Its totient is φ = 65112848640.

The previous prime is 66050559983. The next prime is 66050560007. The reversal of 66050560001 is 10006505066.

It can be written as a sum of positive squares in 8 ways, for example, as 34694650225 + 31355909776 = 186265^2 + 177076^2 .

It is a cyclic number.

It is not a de Polignac number, because 66050560001 - 2⁶ = 66050559937 is a prime.

It is a super-2 number, since 2×66050560001² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66050560007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15019535 + ... + 15023931.

It is an arithmetic number, because the mean of its divisors is an integer number (4187280825).

Almost surely, 2^66050560001 is an apocalyptic number.

It is an amenable number.

66050560001 is a deficient number, since it is larger than the sum of its proper divisors (945933199).

66050560001 is a wasteful number, since it uses less digits than its factorization.

66050560001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5284.

The product of its (nonzero) digits is 5400, while the sum is 29.

The spelling of 66050560001 in words is "sixty-six billion, fifty million, five hundred sixty thousand, one".