166268033 has 4 divisors (see below), whose sum is σ = 166339908. Its totient is φ = 166196160.

The previous prime is 166268027. The next prime is 166268117. The reversal of 166268033 is 330862661.

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 29073664 + 137194369 = 5392^2 + 11713^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166268033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166267984 and 166268002.

It is not an unprimeable number, because it can be changed into a prime (166268233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32348 + ... + 37133.

It is an arithmetic number, because the mean of its divisors is an integer number (41584977).

Almost surely, 2^166268033 is an apocalyptic number.

It is an amenable number.

166268033 is a deficient number, since it is larger than the sum of its proper divisors (71875).

166268033 is an equidigital number, since it uses as much as digits as its factorization.

166268033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71874.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 166268033 is about 12894.4962290118. The cubic root of 166268033 is about 549.8821047579.

The spelling of 166268033 in words is "one hundred sixty-six million, two hundred sixty-eight thousand, thirty-three".