665222533 has 8 divisors (see below), whose sum is σ = 670528800. Its totient is φ = 659934288.

The previous prime is 665222489. The next prime is 665222567. The reversal of 665222533 is 335222566.

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

It is a cyclic number.

It is not a de Polignac number, because 665222533 - 2²¹ = 663125381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665322533) 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, 75103 + ... + 83491.

It is an arithmetic number, because the mean of its divisors is an integer number (83816100).

Almost surely, 2^665222533 is an apocalyptic number.

It is an amenable number.

665222533 is a deficient number, since it is larger than the sum of its proper divisors (5306267).

665222533 is a wasteful number, since it uses less digits than its factorization.

665222533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9011.

The product of its digits is 64800, while the sum is 34.

The square root of 665222533 is about 25791.9082853518. The cubic root of 665222533 is about 872.9492252397.

The spelling of 665222533 in words is "six hundred sixty-five million, two hundred twenty-two thousand, five hundred thirty-three".