16598354249 has 4 divisors (see below), whose sum is σ = 16598792064. Its totient is φ = 16597916436.

The previous prime is 16598354233. The next prime is 16598354251. The reversal of 16598354249 is 94245389561.

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 16598354249 - 2⁴ = 16598354233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16598354194 and 16598354203.

It is not an unprimeable number, because it can be changed into a prime (16598354849) 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 3 ways as a sum of consecutive naturals, for example, 156017 + ... + 239870.

It is an arithmetic number, because the mean of its divisors is an integer number (4149698016).

Almost surely, 2^16598354249 is an apocalyptic number.

It is an amenable number.

16598354249 is a deficient number, since it is larger than the sum of its proper divisors (437815).

16598354249 is an equidigital number, since it uses as much as digits as its factorization.

16598354249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437814.

The product of its digits is 9331200, while the sum is 56.

The spelling of 16598354249 in words is "sixteen billion, five hundred ninety-eight million, three hundred fifty-four thousand, two hundred forty-nine".