16990209982 has 16 divisors (see below), whose sum is σ = 26843437440. Its totient is φ = 8042957208.

The previous prime is 16990209979. The next prime is 16990209991. The reversal of 16990209982 is 28990209961.

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, 78048 + ... + 200179.

It is an arithmetic number, because the mean of its divisors is an integer number (1677714840).

Almost surely, 2^16990209982 is an apocalyptic number.

16990209982 is a deficient number, since it is larger than the sum of its proper divisors (9853227458).

16990209982 is a wasteful number, since it uses less digits than its factorization.

16990209982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279855.

The product of its (nonzero) digits is 1259712, while the sum is 55.

The spelling of 16990209982 in words is "sixteen billion, nine hundred ninety million, two hundred nine thousand, nine hundred eighty-two".