65220013166 has 16 divisors (see below), whose sum is σ = 121969895040. Its totient is φ = 25410394680.

The previous prime is 65220013151. The next prime is 65220013169. The reversal of 65220013166 is 66131002256.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65220013169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211753136 + ... + 211753443.

It is an arithmetic number, because the mean of its divisors is an integer number (7623118440).

Almost surely, 2^65220013166 is an apocalyptic number.

65220013166 is a deficient number, since it is larger than the sum of its proper divisors (56749881874).

65220013166 is a wasteful number, since it uses less digits than its factorization.

65220013166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423506599.

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 65220013166 in words is "sixty-five billion, two hundred twenty million, thirteen thousand, one hundred sixty-six".