163326566 has 8 divisors (see below), whose sum is σ = 263835264. Its totient is φ = 75381480.

The previous prime is 163326557. The next prime is 163326577. The reversal of 163326566 is 665623361.

It is a happy number.

163326566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×163326566² = 53351134322704712, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3140870 + ... + 3140921.

It is an arithmetic number, because the mean of its divisors is an integer number (32979408).

Almost surely, 2^163326566 is an apocalyptic number.

163326566 is a deficient number, since it is larger than the sum of its proper divisors (100508698).

163326566 is a wasteful number, since it uses less digits than its factorization.

163326566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6281806.

The product of its digits is 116640, while the sum is 38.

The square root of 163326566 is about 12779.9282470599. The cubic root of 163326566 is about 546.6201164176.

The spelling of 163326566 in words is "one hundred sixty-three million, three hundred twenty-six thousand, five hundred sixty-six".