1664233222 has 8 divisors (see below), whose sum is σ = 2505562272. Its totient is φ = 829045800.

The previous prime is 1664233217. The next prime is 1664233243. The reversal of 1664233222 is 2223324661.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1534729 + ... + 1535812.

It is an arithmetic number, because the mean of its divisors is an integer number (313195284).

Almost surely, 2^1664233222 is an apocalyptic number.

1664233222 is a deficient number, since it is larger than the sum of its proper divisors (841329050).

1664233222 is a wasteful number, since it uses less digits than its factorization.

1664233222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3070814.

The product of its digits is 20736, while the sum is 31.

The square root of 1664233222 is about 40795.0146709129. The cubic root of 1664233222 is about 1185.0537868967.

Adding to 1664233222 its reverse (2223324661), we get a palindrome (3887557883).

The spelling of 1664233222 in words is "one billion, six hundred sixty-four million, two hundred thirty-three thousand, two hundred twenty-two".