16231808833 has 2 divisors, whose sum is σ = 16231808834. Its totient is φ = 16231808832.

The previous prime is 16231808783. The next prime is 16231808839. The reversal of 16231808833 is 33880813261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13672157184 + 2559651649 = 116928^2 + 50593^2 .

It is a cyclic number.

It is not a de Polignac number, because 16231808833 - 2⁹ = 16231808321 is a prime.

It is a super-3 number, since 3×16231808833³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16231808833.

It is not a weakly prime, because it can be changed into another prime (16231808839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8115904416 + 8115904417.

It is an arithmetic number, because the mean of its divisors is an integer number (8115904417).

Almost surely, 2^16231808833 is an apocalyptic number.

It is an amenable number.

16231808833 is a deficient number, since it is larger than the sum of its proper divisors (1).

16231808833 is an equidigital number, since it uses as much as digits as its factorization.

16231808833 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 43.

The spelling of 16231808833 in words is "sixteen billion, two hundred thirty-one million, eight hundred eight thousand, eight hundred thirty-three".