181455009054 has 64 divisors (see below), whose sum is σ = 422654879232. Its totient is φ = 51751835520.

The previous prime is 181455009023. The next prime is 181455009067. The reversal of 181455009054 is 450900554181.

It is a junction number, because it is equal to n+sod(n) for n = 181455008997 and 181455009015.

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 31 ways as a sum of consecutive naturals, for example, 532522 + ... + 804045.

It is an arithmetic number, because the mean of its divisors is an integer number (6603982488).

Almost surely, 2^181455009054 is an apocalyptic number.

181455009054 is an abundant number, since it is smaller than the sum of its proper divisors (241199870178).

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

181455009054 is a wasteful number, since it uses less digits than its factorization.

181455009054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336622 (or 1336600 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 42.

The spelling of 181455009054 in words is "one hundred eighty-one billion, four hundred fifty-five million, nine thousand, fifty-four".