668182533 has 8 divisors (see below), whose sum is σ = 921631200. Its totient is φ = 430094448.

The previous prime is 668182517. The next prime is 668182561. The reversal of 668182533 is 335281866.

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

It is not a de Polignac number, because 668182533 - 2⁴ = 668182517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668182513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3840043 + ... + 3840216.

It is an arithmetic number, because the mean of its divisors is an integer number (115203900).

Almost surely, 2^668182533 is an apocalyptic number.

It is an amenable number.

668182533 is a deficient number, since it is larger than the sum of its proper divisors (253448667).

668182533 is a wasteful number, since it uses less digits than its factorization.

668182533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7680291.

The product of its digits is 207360, while the sum is 42.

The square root of 668182533 is about 25849.2269323475. The cubic root of 668182533 is about 874.2420791379.

The spelling of 668182533 in words is "six hundred sixty-eight million, one hundred eighty-two thousand, five hundred thirty-three".