16750536409 has 2 divisors, whose sum is σ = 16750536410. Its totient is φ = 16750536408.

The previous prime is 16750536389. The next prime is 16750536427. The reversal of 16750536409 is 90463505761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14184810000 + 2565726409 = 119100^2 + 50653^2 .

It is a cyclic number.

It is not a de Polignac number, because 16750536409 - 2⁷ = 16750536281 is a prime.

It is not a weakly prime, because it can be changed into another prime (16750536449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8375268204 + 8375268205.

It is an arithmetic number, because the mean of its divisors is an integer number (8375268205).

Almost surely, 2^16750536409 is an apocalyptic number.

It is an amenable number.

16750536409 is a deficient number, since it is larger than the sum of its proper divisors (1).

16750536409 is an equidigital number, since it uses as much as digits as its factorization.

16750536409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 680400, while the sum is 46.

The spelling of 16750536409 in words is "sixteen billion, seven hundred fifty million, five hundred thirty-six thousand, four hundred nine".