520166022222 has 64 divisors (see below), whose sum is σ = 1319021107200. Its totient is φ = 132818083680.

The previous prime is 520166022209. The next prime is 520166022239. The reversal of 520166022222 is 222220661025.

It is a self number, because there is not a number n which added to its sum of digits gives 520166022222.

It is a congruent number.

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, 9514272 + ... + 9568787.

It is an arithmetic number, because the mean of its divisors is an integer number (20609704800).

Almost surely, 2^520166022222 is an apocalyptic number.

520166022222 is an abundant number, since it is smaller than the sum of its proper divisors (798855084978).

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

520166022222 is a wasteful number, since it uses less digits than its factorization.

520166022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19083141.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 520166022222 its reverse (222220661025), we get a palindrome (742386683247).

The spelling of 520166022222 in words is "five hundred twenty billion, one hundred sixty-six million, twenty-two thousand, two hundred twenty-two".