20350667137 has 2 divisors, whose sum is σ = 20350667138. Its totient is φ = 20350667136.

The previous prime is 20350667119. The next prime is 20350667159. The reversal of 20350667137 is 73176605302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14895958401 + 5454708736 = 122049^2 + 73856^2 .

It is a cyclic number.

It is not a de Polignac number, because 20350667137 - 2¹⁹ = 20350142849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20350667137.

It is not a weakly prime, because it can be changed into another prime (20350667107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10175333568 + 10175333569.

It is an arithmetic number, because the mean of its divisors is an integer number (10175333569).

Almost surely, 2^20350667137 is an apocalyptic number.

It is an amenable number.

20350667137 is a deficient number, since it is larger than the sum of its proper divisors (1).

20350667137 is an equidigital number, since it uses as much as digits as its factorization.

20350667137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 158760, while the sum is 40.

The spelling of 20350667137 in words is "twenty billion, three hundred fifty million, six hundred sixty-seven thousand, one hundred thirty-seven".