220505424255555 has 32 divisors (see below), whose sum is σ = 359583812288064. Its totient is φ = 115345976418816.

The previous prime is 220505424255541. The next prime is 220505424255577. The reversal of 220505424255555 is 555552424505022.

It is not a de Polignac number, because 220505424255555 - 2¹⁷ = 220505424124483 is a prime.

It is a super-2 number, since 2×220505424255555² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220505424255498 and 220505424255507.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43249944 + ... + 48078773.

It is an arithmetic number, because the mean of its divisors is an integer number (11236994134002).

Almost surely, 2^{220505424255555} is an apocalyptic number.

220505424255555 is a deficient number, since it is larger than the sum of its proper divisors (139078388032509).

220505424255555 is a wasteful number, since it uses less digits than its factorization.

220505424255555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91331815.

The product of its (nonzero) digits is 20000000, while the sum is 51.

The spelling of 220505424255555 in words is "two hundred twenty trillion, five hundred five billion, four hundred twenty-four million, two hundred fifty-five thousand, five hundred fifty-five".