20663204011 has 8 divisors (see below), whose sum is σ = 20856173360. Its totient is φ = 20470296672.

The previous prime is 20663203991. The next prime is 20663204041. The reversal of 20663204011 is 11040236602.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20663204011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20663204041) 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, 909061 + ... + 931513.

It is an arithmetic number, because the mean of its divisors is an integer number (2607021670).

Almost surely, 2^20663204011 is an apocalyptic number.

20663204011 is a deficient number, since it is larger than the sum of its proper divisors (192969349).

20663204011 is a wasteful number, since it uses less digits than its factorization.

20663204011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31005.

The product of its (nonzero) digits is 1728, while the sum is 25.

The spelling of 20663204011 in words is "twenty billion, six hundred sixty-three million, two hundred four thousand, eleven".