66333660163 has 16 divisors (see below), whose sum is σ = 69512477760. Its totient is φ = 63179956224.

The previous prime is 66333660157. The next prime is 66333660229. The reversal of 66333660163 is 36106633366.

66333660163 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 66333660163 - 2⁵ = 66333660131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66333660103) 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, 5767923 + ... + 5779411.

It is an arithmetic number, because the mean of its divisors is an integer number (4344529860).

Almost surely, 2^66333660163 is an apocalyptic number.

66333660163 is a deficient number, since it is larger than the sum of its proper divisors (3178817597).

66333660163 is a wasteful number, since it uses less digits than its factorization.

66333660163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12558.

The product of its (nonzero) digits is 629856, while the sum is 43.

The spelling of 66333660163 in words is "sixty-six billion, three hundred thirty-three million, six hundred sixty thousand, one hundred sixty-three".