16990210189 has 4 divisors (see below), whose sum is σ = 16990600000. Its totient is φ = 16989820380.

The previous prime is 16990210187. The next prime is 16990210201. The reversal of 16990210189 is 98101209961.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16990210189 - 2¹ = 16990210187 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16990210187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119907 + ... + 219904.

It is an arithmetic number, because the mean of its divisors is an integer number (4247650000).

Almost surely, 2^16990210189 is an apocalyptic number.

It is an amenable number.

16990210189 is a deficient number, since it is larger than the sum of its proper divisors (389811).

16990210189 is an equidigital number, since it uses as much as digits as its factorization.

16990210189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389810.

The product of its (nonzero) digits is 69984, while the sum is 46.

The spelling of 16990210189 in words is "sixteen billion, nine hundred ninety million, two hundred ten thousand, one hundred eighty-nine".