320066001 has 24 divisors (see below), whose sum is σ = 488610720. Its totient is φ = 201332736.

The previous prime is 320065981. The next prime is 320066017. The reversal of 320066001 is 100660023.

It is a happy number.

320066001 is a `hidden beast` number, since 3 + 2 + 0 + 0 + 660 + 0 + 1 = 666.

It is not a de Polignac number, because 320066001 - 2⁶ = 320065937 is a prime.

It is a super-2 number, since 2×320066001² = 204884489992264002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (320066801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40306 + ... + 47588.

It is an arithmetic number, because the mean of its divisors is an integer number (20358780).

Almost surely, 2^320066001 is an apocalyptic number.

It is an amenable number.

320066001 is a deficient number, since it is larger than the sum of its proper divisors (168544719).

320066001 is a wasteful number, since it uses less digits than its factorization.

320066001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7565 (or 7562 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 320066001 is about 17890.3885089173. The cubic root of 320066001 is about 684.0374004891.

The spelling of 320066001 in words is "three hundred twenty million, sixty-six thousand, one".