2220604202640 has 40 divisors (see below), whose sum is σ = 6883873028928. Its totient is φ = 592161120640.

The previous prime is 2220604202627. The next prime is 2220604202681. The reversal of 2220604202640 is 462024060222.

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

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2220604202598 and 2220604202607.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4626258516 + ... + 4626258995.

Almost surely, 2^{2220604202640} is an apocalyptic number.

2220604202640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220604202640 is an abundant number, since it is smaller than the sum of its proper divisors (4663268826288).

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

2220604202640 is a wasteful number, since it uses less digits than its factorization.

2220604202640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9252517527 (or 9252517521 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 2220604202640 its reverse (462024060222), we get a palindrome (2682628262862).

The spelling of 2220604202640 in words is "two trillion, two hundred twenty billion, six hundred four million, two hundred two thousand, six hundred forty".