16745633771 has 2 divisors, whose sum is σ = 16745633772. Its totient is φ = 16745633770.

The previous prime is 16745633741. The next prime is 16745633791. The reversal of 16745633771 is 17733654761.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16745633771 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (16745633701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8372816885 + 8372816886.

It is an arithmetic number, because the mean of its divisors is an integer number (8372816886).

Almost surely, 2^16745633771 is an apocalyptic number.

16745633771 is a deficient number, since it is larger than the sum of its proper divisors (1).

16745633771 is an equidigital number, since it uses as much as digits as its factorization.

16745633771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2222640, while the sum is 50.

The spelling of 16745633771 in words is "sixteen billion, seven hundred forty-five million, six hundred thirty-three thousand, seven hundred seventy-one".