16990209953 has 4 divisors (see below), whose sum is σ = 16992285360. Its totient is φ = 16988134548.

The previous prime is 16990209937. The next prime is 16990209979. The reversal of 16990209953 is 35990209961.

16990209953 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 16990209953 - 2⁴ = 16990209937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16990209895 and 16990209904.

It is not an unprimeable number, because it can be changed into a prime (16990209053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1025375 + ... + 1041812.

It is an arithmetic number, because the mean of its divisors is an integer number (4248071340).

Almost surely, 2^16990209953 is an apocalyptic number.

It is an amenable number.

16990209953 is a deficient number, since it is larger than the sum of its proper divisors (2075407).

16990209953 is an equidigital number, since it uses as much as digits as its factorization.

16990209953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2075406.

The product of its (nonzero) digits is 1180980, while the sum is 53.

The spelling of 16990209953 in words is "sixteen billion, nine hundred ninety million, two hundred nine thousand, nine hundred fifty-three".