20659033911 has 8 divisors (see below), whose sum is σ = 28131450624. Its totient is φ = 13479653240.

The previous prime is 20659033897. The next prime is 20659033931. The reversal of 20659033911 is 11933095602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20659033911 - 2¹⁰ = 20659032887 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20659033911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20659033931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73258845 + ... + 73259126.

It is an arithmetic number, because the mean of its divisors is an integer number (3516431328).

Almost surely, 2^20659033911 is an apocalyptic number.

20659033911 is a deficient number, since it is larger than the sum of its proper divisors (7472416713).

20659033911 is a wasteful number, since it uses less digits than its factorization.

20659033911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146518021.

The product of its (nonzero) digits is 43740, while the sum is 39.

The spelling of 20659033911 in words is "twenty billion, six hundred fifty-nine million, thirty-three thousand, nine hundred eleven".