16990209743 has 8 divisors (see below), whose sum is σ = 18300897888. Its totient is φ = 15680057184.

The previous prime is 16990209721. The next prime is 16990209757. The reversal of 16990209743 is 34790209961.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16990209743 - 2¹² = 16990205647 is a prime.

It is a super-2 number, since 2×16990209743² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16990209691 and 16990209700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16990209713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66755 + ... + 196052.

It is an arithmetic number, because the mean of its divisors is an integer number (2287612236).

Almost surely, 2^16990209743 is an apocalyptic number.

16990209743 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

16990209743 is a deficient number, since it is larger than the sum of its proper divisors (1310688145).

16990209743 is a wasteful number, since it uses less digits than its factorization.

16990209743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267793.

The product of its (nonzero) digits is 734832, while the sum is 50.

The spelling of 16990209743 in words is "sixteen billion, nine hundred ninety million, two hundred nine thousand, seven hundred forty-three".