16399753333 has 2 divisors, whose sum is σ = 16399753334. Its totient is φ = 16399753332.

The previous prime is 16399753313. The next prime is 16399753351. The reversal of 16399753333 is 33335799361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15144255844 + 1255497489 = 123062^2 + 35433^2 .

It is an emirp because it is prime and its reverse (33335799361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16399753333 - 2⁹ = 16399752821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16399753313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8199876666 + 8199876667.

It is an arithmetic number, because the mean of its divisors is an integer number (8199876667).

Almost surely, 2^16399753333 is an apocalyptic number.

It is an amenable number.

16399753333 is a deficient number, since it is larger than the sum of its proper divisors (1).

16399753333 is an equidigital number, since it uses as much as digits as its factorization.

16399753333 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4133430, while the sum is 52.

The spelling of 16399753333 in words is "sixteen billion, three hundred ninety-nine million, seven hundred fifty-three thousand, three hundred thirty-three".