181525115340 has 48 divisors (see below), whose sum is σ = 564744804960. Its totient is φ = 48406697280.

The previous prime is 181525115323. The next prime is 181525115351. The reversal of 181525115340 is 43511525181.

181525115340 is a `hidden beast` number, since 1 + 8 + 1 + 52 + 511 + 53 + 40 = 666.

181525115340 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 181525115295 and 181525115304.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168078271 + ... + 168079350.

It is an arithmetic number, because the mean of its divisors is an integer number (11765516770).

Almost surely, 2^181525115340 is an apocalyptic number.

181525115340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

181525115340 is an abundant number, since it is smaller than the sum of its proper divisors (383219689620).

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

181525115340 is a wasteful number, since it uses less digits than its factorization.

181525115340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336157639 (or 336157631 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 36.

The spelling of 181525115340 in words is "one hundred eighty-one billion, five hundred twenty-five million, one hundred fifteen thousand, three hundred forty".