181382084406 has 32 divisors (see below), whose sum is σ = 403941918720. Its totient is φ = 60330101832.

The previous prime is 181382084399. The next prime is 181382084419. The reversal of 181382084406 is 604480283181.

181382084406 is a `hidden beast` number, since 1 + 8 + 1 + 38 + 208 + 4 + 406 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3602350 + ... + 3652353.

It is an arithmetic number, because the mean of its divisors is an integer number (12623184960).

Almost surely, 2^181382084406 is an apocalyptic number.

181382084406 is an abundant number, since it is smaller than the sum of its proper divisors (222559834314).

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

181382084406 is a wasteful number, since it uses less digits than its factorization.

181382084406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7255177 (or 7255171 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The spelling of 181382084406 in words is "one hundred eighty-one billion, three hundred eighty-two million, eighty-four thousand, four hundred six".