56820216882 has 128 divisors (see below), whose sum is σ = 138277601280. Its totient is φ = 15329376000.

The previous prime is 56820216881. The next prime is 56820216907. The reversal of 56820216882 is 28861202865.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (56820216881) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8268544 + ... + 8275412.

It is an arithmetic number, because the mean of its divisors is an integer number (1080293760).

Almost surely, 2^56820216882 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56820216882, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69138800640).

56820216882 is an abundant number, since it is smaller than the sum of its proper divisors (81457384398).

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

56820216882 is a wasteful number, since it uses less digits than its factorization.

56820216882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7240.

The product of its (nonzero) digits is 737280, while the sum is 48.

The spelling of 56820216882 in words is "fifty-six billion, eight hundred twenty million, two hundred sixteen thousand, eight hundred eighty-two".