16806894990 has 16 divisors (see below), whose sum is σ = 40336548048. Its totient is φ = 4481838656.

The previous prime is 16806894983. The next prime is 16806895003. The reversal of 16806894990 is 9949860861.

It is a congruent number.

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, 280114887 + ... + 280114946.

It is an arithmetic number, because the mean of its divisors is an integer number (2521034253).

Almost surely, 2^16806894990 is an apocalyptic number.

16806894990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16806894990 is an abundant number, since it is smaller than the sum of its proper divisors (23529653058).

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

16806894990 is a wasteful number, since it uses less digits than its factorization.

16806894990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560229843.

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

The spelling of 16806894990 in words is "sixteen billion, eight hundred six million, eight hundred ninety-four thousand, nine hundred ninety".