16761345137 has 2 divisors, whose sum is σ = 16761345138. Its totient is φ = 16761345136.

The previous prime is 16761345127. The next prime is 16761345157. The reversal of 16761345137 is 73154316761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11431031056 + 5330314081 = 106916^2 + 73009^2 .

It is an emirp because it is prime and its reverse (73154316761) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16761345137 is a prime.

It is not a weakly prime, because it can be changed into another prime (16761345127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8380672568 + 8380672569.

It is an arithmetic number, because the mean of its divisors is an integer number (8380672569).

Almost surely, 2^16761345137 is an apocalyptic number.

It is an amenable number.

16761345137 is a deficient number, since it is larger than the sum of its proper divisors (1).

16761345137 is an equidigital number, since it uses as much as digits as its factorization.

16761345137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 317520, while the sum is 44.

The spelling of 16761345137 in words is "sixteen billion, seven hundred sixty-one million, three hundred forty-five thousand, one hundred thirty-seven".