16810811522 has 18 divisors (see below), whose sum is σ = 26791745403. Its totient is φ = 7909503232.

The previous prime is 16810811483. The next prime is 16810811543. The reversal of 16810811522 is 22511801861.

It can be written as a sum of positive squares in 5 ways, for example, as 16710991441 + 99820081 = 129271^2 + 9991^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=91681.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3114458 + ... + 3119850.

Almost surely, 2^16810811522 is an apocalyptic number.

16810811522 is a deficient number, since it is larger than the sum of its proper divisors (9980933881).

16810811522 is an frugal number, since it uses more digits than its factorization.

16810811522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10822 (or 5412 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 35.

The spelling of 16810811522 in words is "sixteen billion, eight hundred ten million, eight hundred eleven thousand, five hundred twenty-two".