20832770052 has 84 divisors (see below), whose sum is σ = 55275873660. Its totient is φ = 6866145792.

The previous prime is 20832770017. The next prime is 20832770137. The reversal of 20832770052 is 25007723802.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4920461316 + 15912308736 = 70146^2 + 126144^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 20832769989 and 20832770016.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 219388 + ... + 299660.

It is an arithmetic number, because the mean of its divisors is an integer number (658046115).

Almost surely, 2^20832770052 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 20832770052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27637936830).

20832770052 is an abundant number, since it is smaller than the sum of its proper divisors (34443103608).

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

20832770052 is an equidigital number, since it uses as much as digits as its factorization.

20832770052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80384 (or 80367 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The spelling of 20832770052 in words is "twenty billion, eight hundred thirty-two million, seven hundred seventy thousand, fifty-two".