8055816220 has 24 divisors (see below), whose sum is σ = 16919066304. Its totient is φ = 3221973696.

The previous prime is 8055816193. The next prime is 8055816313. The reversal of 8055816220 is 226185508.

It is a self number, because there is not a number n which added to its sum of digits gives 8055816220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242749 + ... + 273931.

It is an arithmetic number, because the mean of its divisors is an integer number (704961096).

Almost surely, 2^8055816220 is an apocalyptic number.

It is an amenable number.

8055816220 is an abundant number, since it is smaller than the sum of its proper divisors (8863250084).

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

8055816220 is a wasteful number, since it uses less digits than its factorization.

8055816220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44109 (or 44107 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 37.

The square root of 8055816220 is about 89754.1988989930. The cubic root of 8055816220 is about 2004.6405758666.

It can be divided in two parts, 805581 and 6220, that added together give a square (811801 = 901²).

The spelling of 8055816220 in words is "eight billion, fifty-five million, eight hundred sixteen thousand, two hundred twenty".