220523323320 has 48 divisors (see below), whose sum is σ = 716700801960. Its totient is φ = 58806219456.

The previous prime is 220523323309. The next prime is 220523323327. The reversal of 220523323320 is 23323325022.

220523323320 is a `hidden beast` number, since 2 + 2 + 0 + 5 + 2 + 332 + 3 + 320 = 666.

It is a super-2 number, since 2×220523323320² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220523323327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 306282034 + ... + 306282753.

Almost surely, 2^220523323320 is an apocalyptic number.

220523323320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220523323320 is an abundant number, since it is smaller than the sum of its proper divisors (496177478640).

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

220523323320 is a wasteful number, since it uses less digits than its factorization.

220523323320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612564804 (or 612564797 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 27.

Adding to 220523323320 its reverse (23323325022), we get a palindrome (243846648342).

The spelling of 220523323320 in words is "two hundred twenty billion, five hundred twenty-three million, three hundred twenty-three thousand, three hundred twenty".