16698166890 has 16 divisors (see below), whose sum is σ = 40075600608. Its totient is φ = 4452844496.

The previous prime is 16698166847. The next prime is 16698166939. The reversal of 16698166890 is 9866189661.

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 7 ways as a sum of consecutive naturals, for example, 278302752 + ... + 278302811.

It is an arithmetic number, because the mean of its divisors is an integer number (2504725038).

Almost surely, 2^16698166890 is an apocalyptic number.

16698166890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16698166890 is an abundant number, since it is smaller than the sum of its proper divisors (23377433718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16698166890 is a wasteful number, since it uses less digits than its factorization.

16698166890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556605573.

The product of its (nonzero) digits is 6718464, while the sum is 60.

The spelling of 16698166890 in words is "sixteen billion, six hundred ninety-eight million, one hundred sixty-six thousand, eight hundred ninety".