20633586876 has 144 divisors (see below), whose sum is σ = 60845424640. Its totient is φ = 5774146560.

The previous prime is 20633586859. The next prime is 20633586877. The reversal of 20633586876 is 67868533602.

20633586876 is a `hidden beast` number, since 20 + 6 + 33 + 586 + 8 + 7 + 6 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20633586877) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2524236 + ... + 2532396.

Almost surely, 2^20633586876 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20633586876, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30422712320).

20633586876 is an abundant number, since it is smaller than the sum of its proper divisors (40211837764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20633586876 is a wasteful number, since it uses less digits than its factorization.

20633586876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8384 (or 8379 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 20633586876 in words is "twenty billion, six hundred thirty-three million, five hundred eighty-six thousand, eight hundred seventy-six".