220023554450 has 24 divisors (see below), whose sum is σ = 467707213632. Its totient is φ = 75436647120.

The previous prime is 220023554449. The next prime is 220023554453. The reversal of 220023554450 is 54455320022.

It is a super-2 number, since 2×220023554450² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220023554453) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 314319014 + ... + 314319713.

It is an arithmetic number, because the mean of its divisors is an integer number (19487800568).

Almost surely, 2^220023554450 is an apocalyptic number.

220023554450 is an abundant number, since it is smaller than the sum of its proper divisors (247683659182).

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

220023554450 is a wasteful number, since it uses less digits than its factorization.

220023554450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628638746 (or 628638741 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 32.

Adding to 220023554450 its reverse (54455320022), we get a palindrome (274478874472).

The spelling of 220023554450 in words is "two hundred twenty billion, twenty-three million, five hundred fifty-four thousand, four hundred fifty".