1668839006 has 8 divisors (see below), whose sum is σ = 2509795584. Its totient is φ = 832240480.

The previous prime is 1668838979. The next prime is 1668839021. The reversal of 1668839006 is 6009388661.

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

It is a congruent number.

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, 1088555 + ... + 1090086.

It is an arithmetic number, because the mean of its divisors is an integer number (313724448).

Almost surely, 2^1668839006 is an apocalyptic number.

1668839006 is a deficient number, since it is larger than the sum of its proper divisors (840956578).

1668839006 is a wasteful number, since it uses less digits than its factorization.

1668839006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2179026.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 1668839006 is about 40851.4259971424. The cubic root of 1668839006 is about 1186.1459964714.

The spelling of 1668839006 in words is "one billion, six hundred sixty-eight million, eight hundred thirty-nine thousand, six".