220345045540 has 48 divisors (see below), whose sum is σ = 489224433600. Its totient is φ = 83131304832.

The previous prime is 220345045499. The next prime is 220345045553. The reversal of 220345045540 is 45540543022.

It is a junction number, because it is equal to n+sod(n) for n = 220345045496 and 220345045505.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1190955 + ... + 1363474.

It is an arithmetic number, because the mean of its divisors is an integer number (10192175700).

Almost surely, 2^220345045540 is an apocalyptic number.

220345045540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220345045540 is an abundant number, since it is smaller than the sum of its proper divisors (268879388060).

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

220345045540 is a wasteful number, since it uses less digits than its factorization.

220345045540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2554684 (or 2554682 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 34.

Adding to 220345045540 its reverse (45540543022), we get a palindrome (265885588562).

The spelling of 220345045540 in words is "two hundred twenty billion, three hundred forty-five million, forty-five thousand, five hundred forty".