5621215180 has 96 divisors (see below), whose sum is σ = 14124450816. Its totient is φ = 1837330176.

The previous prime is 5621215177. The next prime is 5621215207. The reversal of 5621215180 is 815121265.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1017987 + ... + 1023493.

It is an arithmetic number, because the mean of its divisors is an integer number (147129696).

Almost surely, 2^5621215180 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 5621215180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7062225408).

5621215180 is an abundant number, since it is smaller than the sum of its proper divisors (8503235636).

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

5621215180 is a wasteful number, since it uses less digits than its factorization.

5621215180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5863 (or 5861 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 31.

The square root of 5621215180 is about 74974.7636208344. The cubic root of 5621215180 is about 1778.0476827214.

It can be divided in two parts, 56 and 21215180, that added together give a square (21215236 = 4606²).

The spelling of 5621215180 in words is "five billion, six hundred twenty-one million, two hundred fifteen thousand, one hundred eighty".