20106036992 has 72 divisors (see below), whose sum is σ = 41275105200. Its totient is φ = 9770934272.

The previous prime is 20106036971. The next prime is 20106036997. The reversal of 20106036992 is 29963060102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20106036997) 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, 1336778 + ... + 1351734.

It is an arithmetic number, because the mean of its divisors is an integer number (573265350).

Almost surely, 2^20106036992 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 20106036992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20637552600).

20106036992 is an abundant number, since it is smaller than the sum of its proper divisors (21169068208).

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

20106036992 is an equidigital number, since it uses as much as digits as its factorization.

20106036992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15121 (or 15107 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 38.

The spelling of 20106036992 in words is "twenty billion, one hundred six million, thirty-six thousand, nine hundred ninety-two".