6920168137 has 2 divisors, whose sum is σ = 6920168138. Its totient is φ = 6920168136.

The previous prime is 6920168111. The next prime is 6920168179. The reversal of 6920168137 is 7318610296.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6052217616 + 867950521 = 77796^2 + 29461^2 .

It is a cyclic number.

It is not a de Polignac number, because 6920168137 - 2²³ = 6911779529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6920168093 and 6920168102.

It is not a weakly prime, because it can be changed into another prime (6920168107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3460084068 + 3460084069.

It is an arithmetic number, because the mean of its divisors is an integer number (3460084069).

Almost surely, 2^6920168137 is an apocalyptic number.

It is an amenable number.

6920168137 is a deficient number, since it is larger than the sum of its proper divisors (1).

6920168137 is an equidigital number, since it uses as much as digits as its factorization.

6920168137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 6920168137 is about 83187.5479684309. The cubic root of 6920168137 is about 1905.6313205288.

The spelling of 6920168137 in words is "six billion, nine hundred twenty million, one hundred sixty-eight thousand, one hundred thirty-seven".