2220686907280 has 40 divisors (see below), whose sum is σ = 5163174359352. Its totient is φ = 888261464064.

The previous prime is 2220686907239. The next prime is 2220686907281. The reversal of 2220686907280 is 827096860222.

It can be written as a sum of positive squares in 4 ways, for example, as 747512409744 + 1473174497536 = 864588^2 + 1213744^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×2220686907280² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2220686907281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6523374 + ... + 6855346.

Almost surely, 2^{2220686907280} is an apocalyptic number.

2220686907280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220686907280 is an abundant number, since it is smaller than the sum of its proper divisors (2942487452072).

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

2220686907280 is a wasteful number, since it uses less digits than its factorization.

2220686907280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415603 (or 415597 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 52.

The spelling of 2220686907280 in words is "two trillion, two hundred twenty billion, six hundred eighty-six million, nine hundred seven thousand, two hundred eighty".