181485056568 has 64 divisors (see below), whose sum is σ = 459163728000. Its totient is φ = 59771198592.

The previous prime is 181485056561. The next prime is 181485056579. The reversal of 181485056568 is 865650584181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181485056561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 880038 + ... + 1066506.

It is an arithmetic number, because the mean of its divisors is an integer number (7174433250).

Almost surely, 2^181485056568 is an apocalyptic number.

It is an amenable number.

181485056568 is an abundant number, since it is smaller than the sum of its proper divisors (277678671432).

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

181485056568 is a wasteful number, since it uses less digits than its factorization.

181485056568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186964 (or 186960 counting only the distinct ones).

The product of its (nonzero) digits is 9216000, while the sum is 57.

The spelling of 181485056568 in words is "one hundred eighty-one billion, four hundred eighty-five million, fifty-six thousand, five hundred sixty-eight".