16668666670 has 8 divisors (see below), whose sum is σ = 30003600024. Its totient is φ = 6667466664.

The previous prime is 16668666667. The next prime is 16668666683. The reversal of 16668666670 is 7666686661.

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 833433324 + ... + 833433343.

It is an arithmetic number, because the mean of its divisors is an integer number (3750450003).

Almost surely, 2^16668666670 is an apocalyptic number.

16668666670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16668666670 is a deficient number, since it is larger than the sum of its proper divisors (13334933354).

16668666670 is a wasteful number, since it uses less digits than its factorization.

16668666670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666866674.

The product of its (nonzero) digits is 15676416, while the sum is 58.

The spelling of 16668666670 in words is "sixteen billion, six hundred sixty-eight million, six hundred sixty-six thousand, six hundred seventy".