16334570081 has 2 divisors, whose sum is σ = 16334570082. Its totient is φ = 16334570080.

The previous prime is 16334570033. The next prime is 16334570113. The reversal of 16334570081 is 18007543361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12772390225 + 3562179856 = 113015^2 + 59684^2 .

It is an emirp because it is prime and its reverse (18007543361) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16334570081 is a prime.

It is a super-2 number, since 2×16334570081² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16334570381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8167285040 + 8167285041.

It is an arithmetic number, because the mean of its divisors is an integer number (8167285041).

Almost surely, 2^16334570081 is an apocalyptic number.

It is an amenable number.

16334570081 is a deficient number, since it is larger than the sum of its proper divisors (1).

16334570081 is an equidigital number, since it uses as much as digits as its factorization.

16334570081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 16334570081 in words is "sixteen billion, three hundred thirty-four million, five hundred seventy thousand, eighty-one".