2220748356440 has 64 divisors (see below), whose sum is σ = 5018650025760. Its totient is φ = 884401182720.

The previous prime is 2220748356433. The next prime is 2220748356479. The reversal of 2220748356440 is 446538470222.

It is a super-2 number, since 2×2220748356440² (a number of 25 digits) contains 22 as substring.

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, 10175504 + ... + 10391456.

Almost surely, 2^{2220748356440} is an apocalyptic number.

2220748356440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220748356440 is an abundant number, since it is smaller than the sum of its proper divisors (2797901669320).

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

2220748356440 is a wasteful number, since it uses less digits than its factorization.

2220748356440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217092 (or 217088 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 47.

The spelling of 2220748356440 in words is "two trillion, two hundred twenty billion, seven hundred forty-eight million, three hundred fifty-six thousand, four hundred forty".