20886100992 has 352 divisors, whose sum is σ = 67319115840. Its totient is φ = 6370099200.

The previous prime is 20886100973. The next prime is 20886101003. The reversal of 20886100992 is 29900168802.

20886100992 is a `hidden beast` number, since 20 + 8 + 8 + 610 + 0 + 9 + 9 + 2 = 666.

It is a super-3 number, since 3×20886100992³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17389992 + ... + 17391192.

Almost surely, 2^20886100992 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 20886100992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33659557920).

20886100992 is an abundant number, since it is smaller than the sum of its proper divisors (46433014848).

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

20886100992 is a wasteful number, since it uses less digits than its factorization.

20886100992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284 (or 1260 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The spelling of 20886100992 in words is "twenty billion, eight hundred eighty-six million, one hundred thousand, nine hundred ninety-two".