266664033 has 6 divisors (see below), whose sum is σ = 385181394. Its totient is φ = 177776016.

The previous prime is 266664017. The next prime is 266664049. The reversal of 266664033 is 330466662.

It is an interprime number because it is at equal distance from previous prime (266664017) and next prime (266664049).

It can be written as a sum of positive squares in only one way, i.e., 235561104 + 31102929 = 15348^2 + 5577^2 .

It is not a de Polignac number, because 266664033 - 2⁴ = 266664017 is a prime.

It is a super-2 number, since 2×266664033² = 142219412991650178, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (266664053) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14814660 + ... + 14814677.

It is an arithmetic number, because the mean of its divisors is an integer number (64196899).

Almost surely, 2^266664033 is an apocalyptic number.

It is an amenable number.

266664033 is a deficient number, since it is larger than the sum of its proper divisors (118517361).

266664033 is a wasteful number, since it uses less digits than its factorization.

266664033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29629343 (or 29629340 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 36.

The square root of 266664033 is about 16329.8509791118. The cubic root of 266664033 is about 643.6574707491.

The spelling of 266664033 in words is "two hundred sixty-six million, six hundred sixty-four thousand, thirty-three".