181151533150 has 48 divisors (see below), whose sum is σ = 385119698976. Its totient is φ = 62102113920.

The previous prime is 181151533141. The next prime is 181151533187. The reversal of 181151533150 is 51335151181.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3811332 + ... + 3858568.

It is an arithmetic number, because the mean of its divisors is an integer number (8023327062).

Almost surely, 2^181151533150 is an apocalyptic number.

181151533150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

181151533150 is an abundant number, since it is smaller than the sum of its proper divisors (203968165826).

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

181151533150 is a wasteful number, since it uses less digits than its factorization.

181151533150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58213 (or 58208 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 34.

The spelling of 181151533150 in words is "one hundred eighty-one billion, one hundred fifty-one million, five hundred thirty-three thousand, one hundred fifty".