181105066064 has 40 divisors (see below), whose sum is σ = 377961642240. Its totient is φ = 83569488768.

The previous prime is 181105066063. The next prime is 181105066067. The reversal of 181105066064 is 460660501181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181105066063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 934649 + ... + 1111655.

It is an arithmetic number, because the mean of its divisors is an integer number (9449041056).

Almost surely, 2^181105066064 is an apocalyptic number.

It is an amenable number.

181105066064 is an abundant number, since it is smaller than the sum of its proper divisors (196856576176).

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

181105066064 is a wasteful number, since it uses less digits than its factorization.

181105066064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181947 (or 181941 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The spelling of 181105066064 in words is "one hundred eighty-one billion, one hundred five million, sixty-six thousand, sixty-four".