20966707317 has 16 divisors (see below), whose sum is σ = 28224944000. Its totient is φ = 13843255104.

The previous prime is 20966707313. The next prime is 20966707373. The reversal of 20966707317 is 71370766902.

It is not a de Polignac number, because 20966707317 - 2² = 20966707313 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20966707313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 767784 + ... + 794622.

It is an arithmetic number, because the mean of its divisors is an integer number (1764059000).

Almost surely, 2^20966707317 is an apocalyptic number.

It is an amenable number.

20966707317 is a deficient number, since it is larger than the sum of its proper divisors (7258236683).

20966707317 is a wasteful number, since it uses less digits than its factorization.

20966707317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29340.

The product of its (nonzero) digits is 666792, while the sum is 48.

The spelling of 20966707317 in words is "twenty billion, nine hundred sixty-six million, seven hundred seven thousand, three hundred seventeen".