16649009398 has 40 divisors (see below), whose sum is σ = 30847950792. Its totient is φ = 6715533888.

The previous prime is 16649009383. The next prime is 16649009411. The reversal of 16649009398 is 89390094661.

It is a super-3 number, since 3×16649009398³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 20340 + ... + 183607.

Almost surely, 2^16649009398 is an apocalyptic number.

16649009398 is a deficient number, since it is larger than the sum of its proper divisors (14198941394).

16649009398 is an equidigital number, since it uses as much as digits as its factorization.

16649009398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203994 (or 203973 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 55.

The spelling of 16649009398 in words is "sixteen billion, six hundred forty-nine million, nine thousand, three hundred ninety-eight".