1664312106 has 16 divisors (see below), whose sum is σ = 3503815200. Its totient is φ = 525572208.

The previous prime is 1664312081. The next prime is 1664312113. The reversal of 1664312106 is 6012134661.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7299501 + ... + 7299728.

It is an arithmetic number, because the mean of its divisors is an integer number (218988450).

Almost surely, 2^1664312106 is an apocalyptic number.

1664312106 is an abundant number, since it is smaller than the sum of its proper divisors (1839503094).

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

1664312106 is a wasteful number, since it uses less digits than its factorization.

1664312106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14599253.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 1664312106 is about 40795.9814932795. The cubic root of 1664312106 is about 1185.0725102953.

Adding to 1664312106 its reverse (6012134661), we get a palindrome (7676446767).

The spelling of 1664312106 in words is "one billion, six hundred sixty-four million, three hundred twelve thousand, one hundred six".