16769561933 has 2 divisors, whose sum is σ = 16769561934. Its totient is φ = 16769561932.

The previous prime is 16769561929. The next prime is 16769561969. The reversal of 16769561933 is 33916596761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15775862404 + 993699529 = 125602^2 + 31523^2 .

It is an emirp because it is prime and its reverse (33916596761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16769561933 - 2² = 16769561929 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16769561033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8384780966 + 8384780967.

It is an arithmetic number, because the mean of its divisors is an integer number (8384780967).

Almost surely, 2^16769561933 is an apocalyptic number.

It is an amenable number.

16769561933 is a deficient number, since it is larger than the sum of its proper divisors (1).

16769561933 is an equidigital number, since it uses as much as digits as its factorization.

16769561933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5511240, while the sum is 56.

The spelling of 16769561933 in words is "sixteen billion, seven hundred sixty-nine million, five hundred sixty-one thousand, nine hundred thirty-three".