245042220544420 has 48 divisors (see below), whose sum is σ = 554184926004528. Its totient is φ = 90475083578880.

The previous prime is 245042220544409. The next prime is 245042220544421. The reversal of 245042220544420 is 24445022240542.

It can be written as a sum of positive squares in 8 ways, for example, as 19011623093824 + 226030597450596 = 4360232^2 + 15034314^2 .

It is a super-2 number, since 2×245042220544420² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (245042220544421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 909130 + ... + 22156510.

It is an arithmetic number, because the mean of its divisors is an integer number (11545519291761).

Almost surely, 2^{245042220544420} is an apocalyptic number.

245042220544420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245042220544420 is an abundant number, since it is smaller than the sum of its proper divisors (309142705460108).

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

245042220544420 is a wasteful number, since it uses less digits than its factorization.

245042220544420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21291760 (or 21291758 counting only the distinct ones).

The product of its (nonzero) digits is 819200, while the sum is 40.

Adding to 245042220544420 its reverse (24445022240542), we get a palindrome (269487242784962).

The spelling of 245042220544420 in words is "two hundred forty-five trillion, forty-two billion, two hundred twenty million, five hundred forty-four thousand, four hundred twenty".