220340480181 has 72 divisors (see below), whose sum is σ = 312478941600. Its totient is φ = 138091402368.

The previous prime is 220340480177. The next prime is 220340480209. The reversal of 220340480181 is 181084043022.

220340480181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 220340480181 - 2² = 220340480177 is a prime.

It is a super-2 number, since 2×220340480181² (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 (220340480141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1351782006 + ... + 1351782168.

It is an arithmetic number, because the mean of its divisors is an integer number (4339985300).

Almost surely, 2^220340480181 is an apocalyptic number.

It is an amenable number.

220340480181 is a deficient number, since it is larger than the sum of its proper divisors (92138461419).

220340480181 is a wasteful number, since it uses less digits than its factorization.

220340480181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483 (or 399 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The spelling of 220340480181 in words is "two hundred twenty billion, three hundred forty million, four hundred eighty thousand, one hundred eighty-one".