20116757 has 2 divisors, whose sum is σ = 20116758. Its totient is φ = 20116756.

The previous prime is 20116751. The next prime is 20116771. The reversal of 20116757 is 75761102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19412836 + 703921 = 4406^2 + 839^2 .

It is a cyclic number.

It is not a de Polignac number, because 20116757 - 2⁴ = 20116741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20116751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10058378 + 10058379.

It is an arithmetic number, because the mean of its divisors is an integer number (10058379).

Almost surely, 2^20116757 is an apocalyptic number.

It is an amenable number.

20116757 is a deficient number, since it is larger than the sum of its proper divisors (1).

20116757 is an equidigital number, since it uses as much as digits as its factorization.

20116757 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2940, while the sum is 29.

The square root of 20116757 is about 4485.1707882755. The cubic root of 20116757 is about 271.9689492020.

Adding to 20116757 its reverse (75761102), we get a palindrome (95877859).

The spelling of 20116757 in words is "twenty million, one hundred sixteen thousand, seven hundred fifty-seven".