2180667216 has 160 divisors (see below), whose sum is σ = 6989774848. Its totient is φ = 570447360.

The previous prime is 2180667173. The next prime is 2180667227. The reversal of 2180667216 is 6127660812.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 552771 + ... + 556701.

Almost surely, 2^2180667216 is an apocalyptic number.

2180667216 is a gapful number since it is divisible by the number (26) 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 2180667216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3494887424).

2180667216 is an abundant number, since it is smaller than the sum of its proper divisors (4809107632).

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

2180667216 is a wasteful number, since it uses less digits than its factorization.

2180667216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4089 (or 4083 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 2180667216 is about 46697.6146714155. The cubic root of 2180667216 is about 1296.7705275467.

The spelling of 2180667216 in words is "two billion, one hundred eighty million, six hundred sixty-seven thousand, two hundred sixteen".