16711494805 has 4 divisors (see below), whose sum is σ = 20053793772. Its totient is φ = 13369195840.

The previous prime is 16711494803. The next prime is 16711494827. The reversal of 16711494805 is 50849411761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50849411761 = 145459 ⋅349579.

It can be written as a sum of positive squares in 2 ways, for example, as 11892774916 + 4818719889 = 109054^2 + 69417^2 .

It is not a de Polignac number, because 16711494805 - 2¹ = 16711494803 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16711494803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1671149476 + ... + 1671149485.

It is an arithmetic number, because the mean of its divisors is an integer number (5013448443).

Almost surely, 2^16711494805 is an apocalyptic number.

It is an amenable number.

16711494805 is a deficient number, since it is larger than the sum of its proper divisors (3342298967).

16711494805 is an equidigital number, since it uses as much as digits as its factorization.

16711494805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3342298966.

The product of its (nonzero) digits is 241920, while the sum is 46.

The spelling of 16711494805 in words is "sixteen billion, seven hundred eleven million, four hundred ninety-four thousand, eight hundred five".