999966733933 has 2 divisors, whose sum is σ = 999966733934. Its totient is φ = 999966733932.

The previous prime is 999966733873. The next prime is 999966733943. The reversal of 999966733933 is 339337669999.

It is the 408242-nd star number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 577262609284 + 422704124649 = 759778^2 + 650157^2 .

It is a cyclic number.

It is not a de Polignac number, because 999966733933 - 2¹³ = 999966725741 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 999966733933.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999966733943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499983366966 + 499983366967.

It is an arithmetic number, because the mean of its divisors is an integer number (499983366967).

Almost surely, 2^999966733933 is an apocalyptic number.

It is an amenable number.

999966733933 is a deficient number, since it is larger than the sum of its proper divisors (1).

999966733933 is an equidigital number, since it uses as much as digits as its factorization.

999966733933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1205308188, while the sum is 76.

The spelling of 999966733933 in words is "nine hundred ninety-nine billion, nine hundred sixty-six million, seven hundred thirty-three thousand, nine hundred thirty-three".