16507273335997 has 2 divisors, whose sum is σ = 16507273335998. Its totient is φ = 16507273335996.

The previous prime is 16507273335937. The next prime is 16507273336003. The reversal of 16507273335997 is 79953337270561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16501192611556 + 6080724441 = 4062166^2 + 77979^2 .

It is a cyclic number.

It is not a de Polignac number, because 16507273335997 - 2³¹ = 16505125852349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16507273335937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8253636667998 + 8253636667999.

It is an arithmetic number, because the mean of its divisors is an integer number (8253636667999).

Almost surely, 2^{16507273335997} is an apocalyptic number.

It is an amenable number.

16507273335997 is a deficient number, since it is larger than the sum of its proper divisors (1).

16507273335997 is an equidigital number, since it uses as much as digits as its factorization.

16507273335997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 225042300, while the sum is 67.

The spelling of 16507273335997 in words is "sixteen trillion, five hundred seven billion, two hundred seventy-three million, three hundred thirty-five thousand, nine hundred ninety-seven".