1666883622 has 16 divisors (see below), whose sum is σ = 3338959680. Its totient is φ = 554762472.

The previous prime is 1666883611. The next prime is 1666883639. The reversal of 1666883622 is 2263886661.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212172 + ... + 219887.

It is an arithmetic number, because the mean of its divisors is an integer number (208684980).

Almost surely, 2^1666883622 is an apocalyptic number.

1666883622 is an abundant number, since it is smaller than the sum of its proper divisors (1672076058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1666883622 is a wasteful number, since it uses less digits than its factorization.

1666883622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432707.

The product of its digits is 995328, while the sum is 48.

The square root of 1666883622 is about 40827.4861092377. The cubic root of 1666883622 is about 1185.6825450627.

The spelling of 1666883622 in words is "one billion, six hundred sixty-six million, eight hundred eighty-three thousand, six hundred twenty-two".