15320066 has 8 divisors (see below), whose sum is σ = 22997520. Its totient is φ = 7654228.

The previous prime is 15320051. The next prime is 15320069. The reversal of 15320066 is 66002351.

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

It is not an unprimeable number, because it can be changed into a prime (15320069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2165 + ... + 5943.

It is an arithmetic number, because the mean of its divisors is an integer number (2874690).

Almost surely, 2^15320066 is an apocalyptic number.

15320066 is a deficient number, since it is larger than the sum of its proper divisors (7677454).

15320066 is a wasteful number, since it uses less digits than its factorization.

15320066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5808.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 15320066 is about 3914.0855892533. The cubic root of 15320066 is about 248.3629895167.

The spelling of 15320066 in words is "fifteen million, three hundred twenty thousand, sixty-six".