181382316054 has 32 divisors (see below), whose sum is σ = 363184132320. Its totient is φ = 60390899712.

The previous prime is 181382316029. The next prime is 181382316097. The reversal of 181382316054 is 450613283181.

It is a happy number.

It is a super-2 number, since 2×181382316054² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 181382315997 and 181382316015.

It is a congruent number.

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, 28619574 + ... + 28625910.

It is an arithmetic number, because the mean of its divisors is an integer number (11349504135).

Almost surely, 2^181382316054 is an apocalyptic number.

181382316054 is an abundant number, since it is smaller than the sum of its proper divisors (181801816266).

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

181382316054 is a wasteful number, since it uses less digits than its factorization.

181382316054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11104.

The product of its (nonzero) digits is 138240, while the sum is 42.

The spelling of 181382316054 in words is "one hundred eighty-one billion, three hundred eighty-two million, three hundred sixteen thousand, fifty-four".