1668334107 has 16 divisors (see below), whose sum is σ = 2492255232. Its totient is φ = 983783520.

The previous prime is 1668334067. The next prime is 1668334111. The reversal of 1668334107 is 7014338661.

It is not a de Polignac number, because 1668334107 - 2¹² = 1668330011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1668334307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 681963 + ... + 684404.

It is an arithmetic number, because the mean of its divisors is an integer number (155765952).

Almost surely, 2^1668334107 is an apocalyptic number.

1668334107 is a deficient number, since it is larger than the sum of its proper divisors (823921125).

1668334107 is a wasteful number, since it uses less digits than its factorization.

1668334107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366418.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 1668334107 is about 40845.2458310634. The cubic root of 1668334107 is about 1186.0263635346.

The spelling of 1668334107 in words is "one billion, six hundred sixty-eight million, three hundred thirty-four thousand, one hundred seven".