16650011065 has 8 divisors (see below), whose sum is σ = 20031378120. Its totient is φ = 13285765632.

The previous prime is 16650011047. The next prime is 16650011111. The reversal of 16650011065 is 56011005661.

It can be written as a sum of positive squares in 4 ways, for example, as 107163904 + 16542847161 = 10352^2 + 128619^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16650011065 - 2²³ = 16641622457 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4278264 + ... + 4282153.

It is an arithmetic number, because the mean of its divisors is an integer number (2503922265).

Almost surely, 2^16650011065 is an apocalyptic number.

It is an amenable number.

16650011065 is a deficient number, since it is larger than the sum of its proper divisors (3381367055).

16650011065 is an equidigital number, since it uses as much as digits as its factorization.

16650011065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8560811.

The product of its (nonzero) digits is 5400, while the sum is 31.

The spelling of 16650011065 in words is "sixteen billion, six hundred fifty million, eleven thousand, sixty-five".