1667690068 has 12 divisors (see below), whose sum is σ = 3183772032. Its totient is φ = 758040920.

The previous prime is 1667690053. The next prime is 1667690077. The reversal of 1667690068 is 8600967661.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18950980 + ... + 18951067.

It is an arithmetic number, because the mean of its divisors is an integer number (265314336).

Almost surely, 2^1667690068 is an apocalyptic number.

It is an amenable number.

1667690068 is a deficient number, since it is larger than the sum of its proper divisors (1516081964).

1667690068 is a wasteful number, since it uses less digits than its factorization.

1667690068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37902062 (or 37902060 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 1667690068 is about 40837.3611782152. The cubic root of 1667690068 is about 1185.8737271328.

The spelling of 1667690068 in words is "one billion, six hundred sixty-seven million, six hundred ninety thousand, sixty-eight".