220544805561132 has 192 divisors, whose sum is σ = 575005384396800. Its totient is φ = 65353947310080.

The previous prime is 220544805561109. The next prime is 220544805561187. The reversal of 220544805561132 is 231165508445022.

It is a happy number.

It is a super-2 number, since 2×220544805561132² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2747188969 + ... + 2747269247.

It is an arithmetic number, because the mean of its divisors is an integer number (2994819710400).

Almost surely, 2^{220544805561132} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220544805561132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287502692198400).

220544805561132 is an abundant number, since it is smaller than the sum of its proper divisors (354460578835668).

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

220544805561132 is a wasteful number, since it uses less digits than its factorization.

220544805561132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85856 (or 85854 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 48.

The spelling of 220544805561132 in words is "two hundred twenty trillion, five hundred forty-four billion, eight hundred five million, five hundred sixty-one thousand, one hundred thirty-two".