16298499609 has 36 divisors (see below), whose sum is σ = 27445406976. Its totient is φ = 9293196528.

The previous prime is 16298499551. The next prime is 16298499617. The reversal of 16298499609 is 90699489261.

16298499609 is a `hidden beast` number, since 16 + 2 + 9 + 8 + 4 + 9 + 9 + 609 = 666.

It is not a de Polignac number, because 16298499609 - 2²⁰ = 16297451033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (16298499619) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 164272 + ... + 244094.

It is an arithmetic number, because the mean of its divisors is an integer number (762372416).

Almost surely, 2^16298499609 is an apocalyptic number.

It is an amenable number.

16298499609 is a deficient number, since it is larger than the sum of its proper divisors (11146907367).

16298499609 is a wasteful number, since it uses less digits than its factorization.

16298499609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80306 (or 80296 counting only the distinct ones).

The product of its (nonzero) digits is 15116544, while the sum is 63.

The spelling of 16298499609 in words is "sixteen billion, two hundred ninety-eight million, four hundred ninety-nine thousand, six hundred nine".