163266233 has 4 divisors (see below), whose sum is σ = 175825188. Its totient is φ = 150707280.

The previous prime is 163266211. The next prime is 163266239. The reversal of 163266233 is 332662361.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 50651689 + 112614544 = 7117^2 + 10612^2 .

It is a cyclic number.

It is not a de Polignac number, because 163266233 - 2¹⁸ = 163004089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 163266233.

It is not an unprimeable number, because it can be changed into a prime (163266239) 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, 6279458 + ... + 6279483.

It is an arithmetic number, because the mean of its divisors is an integer number (43956297).

Almost surely, 2^163266233 is an apocalyptic number.

163266233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

163266233 is a deficient number, since it is larger than the sum of its proper divisors (12558955).

163266233 is a wasteful number, since it uses less digits than its factorization.

163266233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12558954.

The product of its digits is 23328, while the sum is 32.

The square root of 163266233 is about 12777.5675697685. The cubic root of 163266233 is about 546.5528007853.

The spelling of 163266233 in words is "one hundred sixty-three million, two hundred sixty-six thousand, two hundred thirty-three".