4216665137 has 2 divisors, whose sum is σ = 4216665138. Its totient is φ = 4216665136.

The previous prime is 4216665133. The next prime is 4216665139. The reversal of 4216665137 is 7315666124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3487611136 + 729054001 = 59056^2 + 27001^2 .

It is a cyclic number.

It is not a de Polignac number, because 4216665137 - 2² = 4216665133 is a prime.

Together with 4216665139, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 4216665094 and 4216665103.

It is not a weakly prime, because it can be changed into another prime (4216665133) 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, 2108332568 + 2108332569.

It is an arithmetic number, because the mean of its divisors is an integer number (2108332569).

Almost surely, 2^4216665137 is an apocalyptic number.

It is an amenable number.

4216665137 is a deficient number, since it is larger than the sum of its proper divisors (1).

4216665137 is an equidigital number, since it uses as much as digits as its factorization.

4216665137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 41.

The square root of 4216665137 is about 64935.8540176381. The cubic root of 4216665137 is about 1615.5597987807.

The spelling of 4216665137 in words is "four billion, two hundred sixteen million, six hundred sixty-five thousand, one hundred thirty-seven".