16668370187 has 8 divisors (see below), whose sum is σ = 19103533536. Its totient is φ = 14246698752.

The previous prime is 16668370157. The next prime is 16668370189. The reversal of 16668370187 is 78107386661.

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

It is a cyclic number.

It is not a de Polignac number, because 16668370187 - 2⁸ = 16668369931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16668370189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3370328 + ... + 3375269.

It is an arithmetic number, because the mean of its divisors is an integer number (2387941692).

Almost surely, 2^16668370187 is an apocalyptic number.

16668370187 is a deficient number, since it is larger than the sum of its proper divisors (2435163349).

16668370187 is an equidigital number, since it uses as much as digits as its factorization.

16668370187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6745957.

The product of its (nonzero) digits is 2032128, while the sum is 53.

The spelling of 16668370187 in words is "sixteen billion, six hundred sixty-eight million, three hundred seventy thousand, one hundred eighty-seven".