668233522 has 8 divisors (see below), whose sum is σ = 1093473072. Its totient is φ = 303742500.

The previous prime is 668233519. The next prime is 668233541. The reversal of 668233522 is 225332866.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 15187104 + ... + 15187147.

It is an arithmetic number, because the mean of its divisors is an integer number (136684134).

Almost surely, 2^668233522 is an apocalyptic number.

668233522 is a deficient number, since it is larger than the sum of its proper divisors (425239550).

668233522 is a wasteful number, since it uses less digits than its factorization.

668233522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30374264.

The product of its digits is 103680, while the sum is 37.

The square root of 668233522 is about 25850.2131906102. The cubic root of 668233522 is about 874.2643163726.

It can be divided in two parts, 6682 and 33522, that added together give a palindrome (40204).

The spelling of 668233522 in words is "six hundred sixty-eight million, two hundred thirty-three thousand, five hundred twenty-two".