220165323504 has 80 divisors (see below), whose sum is σ = 650128627200. Its totient is φ = 62893082880.

The previous prime is 220165323463. The next prime is 220165323517. The reversal of 220165323504 is 405323561022.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1913397 + ... + 2025195.

It is an arithmetic number, because the mean of its divisors is an integer number (8126607840).

Almost surely, 2^220165323504 is an apocalyptic number.

220165323504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

220165323504 is an abundant number, since it is smaller than the sum of its proper divisors (429963303696).

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

220165323504 is a wasteful number, since it uses less digits than its factorization.

220165323504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117678 (or 117672 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 220165323504 its reverse (405323561022), we get a palindrome (625488884526).

The spelling of 220165323504 in words is "two hundred twenty billion, one hundred sixty-five million, three hundred twenty-three thousand, five hundred four".