320465066 has 16 divisors (see below), whose sum is σ = 494258856. Its totient is φ = 155722176.

The previous prime is 320465017. The next prime is 320465081. The reversal of 320465066 is 660564023.

It can be written as a sum of positive squares in 4 ways, for example, as 224130841 + 96334225 = 14971^2 + 9815^2 .

It is a Curzon number.

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, 80720 + ... + 84596.

Almost surely, 2^320465066 is an apocalyptic number.

320465066 is a deficient number, since it is larger than the sum of its proper divisors (173793790).

320465066 is a wasteful number, since it uses less digits than its factorization.

320465066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5033.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 320465066 is about 17901.5380903430. The cubic root of 320465066 is about 684.3215731414.

The spelling of 320465066 in words is "three hundred twenty million, four hundred sixty-five thousand, sixty-six".