20052043776 has 120 divisors (see below), whose sum is σ = 59894444610. Its totient is φ = 6683959296.

The previous prime is 20052043733. The next prime is 20052043777. The reversal of 20052043776 is 67734025002.

It is a happy number.

20052043776 is a `hidden beast` number, since 20 + 0 + 520 + 43 + 7 + 76 = 666.

It can be written as a sum of positive squares in only one way, i.e., 18714240000 + 1337803776 = 136800^2 + 36576^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 20052043776.

It is not an unprimeable number, because it can be changed into a prime (20052043777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 105450 + ... + 226326.

Almost surely, 2^20052043776 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 20052043776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29947222305).

20052043776 is an abundant number, since it is smaller than the sum of its proper divisors (39842400834).

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

20052043776 is an equidigital number, since it uses as much as digits as its factorization.

20052043776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120911 (or 120882 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

Adding to 20052043776 its reverse (67734025002), we get a palindrome (87786068778).

The spelling of 20052043776 in words is "twenty billion, fifty-two million, forty-three thousand, seven hundred seventy-six".