2216471880 has 192 divisors, whose sum is σ = 7867368000. Its totient is φ = 497957376.

The previous prime is 2216471867. The next prime is 2216471903. The reversal of 2216471880 is 881746122.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 343726 + ... + 350114.

It is an arithmetic number, because the mean of its divisors is an integer number (40975875).

Almost surely, 2^2216471880 is an apocalyptic number.

2216471880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2216471880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3933684000).

2216471880 is an abundant number, since it is smaller than the sum of its proper divisors (5650896120).

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

2216471880 is a wasteful number, since it uses less digits than its factorization.

2216471880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6476 (or 6465 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 2216471880 is about 47079.4209819959. The cubic root of 2216471880 is about 1303.8293166765.

The spelling of 2216471880 in words is "two billion, two hundred sixteen million, four hundred seventy-one thousand, eight hundred eighty".