16593749905 has 16 divisors (see below), whose sum is σ = 20558813184. Its totient is φ = 12844290240.

The previous prime is 16593749873. The next prime is 16593749911. The reversal of 16593749905 is 50994739561.

It is a happy number.

It is not a de Polignac number, because 16593749905 - 2⁵ = 16593749873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16593749905.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1559112 + ... + 1569718.

It is an arithmetic number, because the mean of its divisors is an integer number (1284925824).

Almost surely, 2^16593749905 is an apocalyptic number.

It is an amenable number.

16593749905 is a deficient number, since it is larger than the sum of its proper divisors (3965063279).

16593749905 is a wasteful number, since it uses less digits than its factorization.

16593749905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20736.

The product of its (nonzero) digits is 9185400, while the sum is 58.

The spelling of 16593749905 in words is "sixteen billion, five hundred ninety-three million, seven hundred forty-nine thousand, nine hundred five".