220545033700 has 18 divisors (see below), whose sum is σ = 478582723346. Its totient is φ = 88218013440.

The previous prime is 220545033689. The next prime is 220545033701. The reversal of 220545033700 is 7330545022.

It can be written as a sum of positive squares in 3 ways, for example, as 11419914496 + 209125119204 = 106864^2 + 457302^2 .

It is a super-2 number, since 2×220545033700² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220545033701) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1102725069 + ... + 1102725268.

Almost surely, 2^220545033700 is an apocalyptic number.

220545033700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220545033700 is an abundant number, since it is smaller than the sum of its proper divisors (258037689646).

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

220545033700 is a wasteful number, since it uses less digits than its factorization.

220545033700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2205450351 (or 2205450344 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 31.

Adding to 220545033700 its reverse (7330545022), we get a palindrome (227875578722).

The spelling of 220545033700 in words is "two hundred twenty billion, five hundred forty-five million, thirty-three thousand, seven hundred".