20359033717 has 12 divisors (see below), whose sum is σ = 23351076000. Its totient is φ = 17703505160.

The previous prime is 20359033697. The next prime is 20359033769. The reversal of 20359033717 is 71733095302.

It is a happy number.

It is not a de Polignac number, because 20359033717 - 2²³ = 20350645109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20359033717.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20359033777) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3654967 + ... + 3660532.

It is an arithmetic number, because the mean of its divisors is an integer number (1945923000).

Almost surely, 2^20359033717 is an apocalyptic number.

It is an amenable number.

20359033717 is a deficient number, since it is larger than the sum of its proper divisors (2992042283).

20359033717 is a wasteful number, since it uses less digits than its factorization.

20359033717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7315544 (or 7315533 counting only the distinct ones).

The product of its (nonzero) digits is 119070, while the sum is 40.

The spelling of 20359033717 in words is "twenty billion, three hundred fifty-nine million, thirty-three thousand, seven hundred seventeen".