16765199137 has 2 divisors, whose sum is σ = 16765199138. Its totient is φ = 16765199136.

The previous prime is 16765199117. The next prime is 16765199147. The reversal of 16765199137 is 73199156761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16684630561 + 80568576 = 129169^2 + 8976^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16765199137 is a prime.

It is not a weakly prime, because it can be changed into another prime (16765199117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8382599568 + 8382599569.

It is an arithmetic number, because the mean of its divisors is an integer number (8382599569).

Almost surely, 2^16765199137 is an apocalyptic number.

It is an amenable number.

16765199137 is a deficient number, since it is larger than the sum of its proper divisors (1).

16765199137 is an equidigital number, since it uses as much as digits as its factorization.

16765199137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2143260, while the sum is 55.

The spelling of 16765199137 in words is "sixteen billion, seven hundred sixty-five million, one hundred ninety-nine thousand, one hundred thirty-seven".