1630666322 has 8 divisors (see below), whose sum is σ = 2446792572. Its totient is φ = 815068800.

The previous prime is 1630666319. The next prime is 1630666337. The reversal of 1630666322 is 2236660361.

It can be written as a sum of positive squares in 2 ways, for example, as 1592089801 + 38576521 = 39901^2 + 6211^2 .

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

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, 124379 + ... + 136862.

Almost surely, 2^1630666322 is an apocalyptic number.

1630666322 is a deficient number, since it is larger than the sum of its proper divisors (816126250).

1630666322 is a wasteful number, since it uses less digits than its factorization.

1630666322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264364.

The product of its (nonzero) digits is 46656, while the sum is 35.

The square root of 1630666322 is about 40381.5096547913. The cubic root of 1630666322 is about 1177.0322631723.

It can be divided in two parts, 16306 and 66322, that added together give a palindrome (82628).

The spelling of 1630666322 in words is "one billion, six hundred thirty million, six hundred sixty-six thousand, three hundred twenty-two".