16866868670 has 32 divisors (see below), whose sum is σ = 32499964800. Its totient is φ = 6283318176.

The previous prime is 16866868657. The next prime is 16866868673. The reversal of 16866868670 is 7686866861.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16866868673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 741104 + ... + 763523.

It is an arithmetic number, because the mean of its divisors is an integer number (1015623900).

Almost surely, 2^16866868670 is an apocalyptic number.

16866868670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16866868670 is a deficient number, since it is larger than the sum of its proper divisors (15633096130).

16866868670 is a wasteful number, since it uses less digits than its factorization.

16866868670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504712.

The product of its (nonzero) digits is 27869184, while the sum is 62.

The spelling of 16866868670 in words is "sixteen billion, eight hundred sixty-six million, eight hundred sixty-eight thousand, six hundred seventy".