1664183106 has 48 divisors (see below), whose sum is σ = 3726597888. Its totient is φ = 536176800.

The previous prime is 1664183099. The next prime is 1664183123. The reversal of 1664183106 is 6013814661.

1664183106 is a `hidden beast` number, since 1 + 6 + 641 + 8 + 3 + 1 + 0 + 6 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 689041 + ... + 691451.

It is an arithmetic number, because the mean of its divisors is an integer number (77637456).

Almost surely, 2^1664183106 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1664183106, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1863298944).

1664183106 is an abundant number, since it is smaller than the sum of its proper divisors (2062414782).

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

1664183106 is a wasteful number, since it uses less digits than its factorization.

1664183106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3687 (or 3684 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 1664183106 is about 40794.4004245681. The cubic root of 1664183106 is about 1185.0418913781.

Adding to 1664183106 its reverse (6013814661), we get a palindrome (7677997767).

The spelling of 1664183106 in words is "one billion, six hundred sixty-four million, one hundred eighty-three thousand, one hundred six".