16668370 has 16 divisors (see below), whose sum is σ = 30093120. Its totient is φ = 6647344.

The previous prime is 16668361. The next prime is 16668401. The reversal of 16668370 is 7386661.

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, 1269 + ... + 5911.

It is an arithmetic number, because the mean of its divisors is an integer number (1880820).

Almost surely, 2^16668370 is an apocalyptic number.

16668370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16668370 is a deficient number, since it is larger than the sum of its proper divisors (13424750).

16668370 is a wasteful number, since it uses less digits than its factorization.

16668370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5009.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 16668370 is about 4082.6915141852. The cubic root of 16668370 is about 255.4451790374.

It can be divided in two parts, 166683 and 70, that added together give a triangular number (166753 = T₅₇₇).

The spelling of 16668370 in words is "sixteen million, six hundred sixty-eight thousand, three hundred seventy".