163506066 has 16 divisors (see below), whose sum is σ = 327461184. Its totient is φ = 54427184.

The previous prime is 163506061. The next prime is 163506067. The reversal of 163506066 is 660605361.

It is not an unprimeable number, because it can be changed into a prime (163506061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13881 + ... + 22796.

It is an arithmetic number, because the mean of its divisors is an integer number (20466324).

Almost surely, 2^163506066 is an apocalyptic number.

163506066 is an abundant number, since it is smaller than the sum of its proper divisors (163955118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163506066 is a wasteful number, since it uses less digits than its factorization.

163506066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37425.

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 163506066 is about 12786.9490497147. The cubic root of 163506066 is about 546.8202928502.

The spelling of 163506066 in words is "one hundred sixty-three million, five hundred six thousand, sixty-six".