2220945036680 has 128 divisors (see below), whose sum is σ = 5218956334080. Its totient is φ = 849670901760.

The previous prime is 2220945036659. The next prime is 2220945036689. The reversal of 2220945036680 is 866305490222.

It is not an unprimeable number, because it can be changed into a prime (2220945036689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38533964 + ... + 38591556.

It is an arithmetic number, because the mean of its divisors is an integer number (40773096360).

Almost surely, 2^{2220945036680} is an apocalyptic number.

2220945036680 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 2220945036680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2609478167040).

2220945036680 is an abundant number, since it is smaller than the sum of its proper divisors (2998011297400).

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

2220945036680 is a wasteful number, since it uses less digits than its factorization.

2220945036680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57999 (or 57995 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 47.

The spelling of 2220945036680 in words is "two trillion, two hundred twenty billion, nine hundred forty-five million, thirty-six thousand, six hundred eighty".