220042620550 has 36 divisors (see below), whose sum is σ = 422907812748. Its totient is φ = 85177770000.

The previous prime is 220042620527. The next prime is 220042620563. The reversal of 220042620550 is 55026240022.

It is a super-2 number, since 2×220042620550² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2241676 + ... + 2337775.

It is an arithmetic number, because the mean of its divisors is an integer number (11747439243).

Almost surely, 2^220042620550 is an apocalyptic number.

220042620550 is a deficient number, since it is larger than the sum of its proper divisors (202865192198).

220042620550 is a wasteful number, since it uses less digits than its factorization.

220042620550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4579525 (or 4579489 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 220042620550 its reverse (55026240022), we get a palindrome (275068860572).

The spelling of 220042620550 in words is "two hundred twenty billion, forty-two million, six hundred twenty thousand, five hundred fifty".