2040217163717 has 4 divisors (see below), whose sum is σ = 2089978557996. Its totient is φ = 1990455769440.

The previous prime is 2040217163713. The next prime is 2040217163753. The reversal of 2040217163717 is 7173617120402.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 56249134561 + 1983968029156 = 237169^2 + 1408534^2 .

It is a cyclic number.

It is not a de Polignac number, because 2040217163717 - 2² = 2040217163713 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 49761394237 = 2040217163717 / (2 + 0 + 4 + 0 + 2 + 1 + 7 + 1 + 6 + 3 + 7 + 1 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040217163713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24880697078 + ... + 24880697159.

It is an arithmetic number, because the mean of its divisors is an integer number (522494639499).

Almost surely, 2^{2040217163717} is an apocalyptic number.

It is an amenable number.

2040217163717 is a deficient number, since it is larger than the sum of its proper divisors (49761394279).

2040217163717 is an equidigital number, since it uses as much as digits as its factorization.

2040217163717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49761394278.

The product of its (nonzero) digits is 98784, while the sum is 41.

The spelling of 2040217163717 in words is "two trillion, forty billion, two hundred seventeen million, one hundred sixty-three thousand, seven hundred seventeen".