140506416689 has 2 divisors, whose sum is σ = 140506416690. Its totient is φ = 140506416688.

The previous prime is 140506416641. The next prime is 140506416703. The reversal of 140506416689 is 986614605041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93890152225 + 46616264464 = 306415^2 + 215908^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140506416689 is a prime.

It is not a weakly prime, because it can be changed into another prime (140506416889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70253208344 + 70253208345.

It is an arithmetic number, because the mean of its divisors is an integer number (70253208345).

Almost surely, 2^140506416689 is an apocalyptic number.

It is an amenable number.

140506416689 is a deficient number, since it is larger than the sum of its proper divisors (1).

140506416689 is an equidigital number, since it uses as much as digits as its factorization.

140506416689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 140506416689 in words is "one hundred forty billion, five hundred six million, four hundred sixteen thousand, six hundred eighty-nine".