181348115568 has 40 divisors (see below), whose sum is σ = 478450353408. Its totient is φ = 59163214272.

The previous prime is 181348115563. The next prime is 181348115573. The reversal of 181348115568 is 865511843181.

It is an interprime number because it is at equal distance from previous prime (181348115563) and next prime (181348115573).

It is a self number, because there is not a number n which added to its sum of digits gives 181348115568.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181348115563) 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, 40190146 + ... + 40194657.

Almost surely, 2^181348115568 is an apocalyptic number.

It is an amenable number.

181348115568 is an abundant number, since it is smaller than the sum of its proper divisors (297102237840).

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

181348115568 is a wasteful number, since it uses less digits than its factorization.

181348115568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80384861 (or 80384855 counting only the distinct ones).

The product of its digits is 921600, while the sum is 51.

The spelling of 181348115568 in words is "one hundred eighty-one billion, three hundred forty-eight million, one hundred fifteen thousand, five hundred sixty-eight".