2220642626640 has 80 divisors (see below), whose sum is σ = 6884934336000. Its totient is φ = 592090318336.

The previous prime is 2220642626567. The next prime is 2220642626701. The reversal of 2220642626640 is 466262460222.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 2220642626592 and 2220642626601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1134241 + ... + 2393279.

It is an arithmetic number, because the mean of its divisors is an integer number (86061679200).

Almost surely, 2^{2220642626640} is an apocalyptic number.

2220642626640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220642626640 is an abundant number, since it is smaller than the sum of its proper divisors (4664291709360).

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

2220642626640 is a wasteful number, since it uses less digits than its factorization.

2220642626640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266404 (or 1266398 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 42.

The spelling of 2220642626640 in words is "two trillion, two hundred twenty billion, six hundred forty-two million, six hundred twenty-six thousand, six hundred forty".