181800045054 has 32 divisors (see below), whose sum is σ = 404028330240. Its totient is φ = 60595780536.

The previous prime is 181800045041. The next prime is 181800045067. The reversal of 181800045054 is 450540008181.

181800045054 is a `hidden beast` number, since 1 + 81 + 80 + 0 + 0 + 450 + 54 = 666.

It is an interprime number because it is at equal distance from previous prime (181800045041) and next prime (181800045067).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 716607 + ... + 936549.

It is an arithmetic number, because the mean of its divisors is an integer number (12625885320).

Almost surely, 2^181800045054 is an apocalyptic number.

181800045054 is an abundant number, since it is smaller than the sum of its proper divisors (222228285186).

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

181800045054 is a wasteful number, since it uses less digits than its factorization.

181800045054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235261 (or 235255 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 36.

The spelling of 181800045054 in words is "one hundred eighty-one billion, eight hundred million, forty-five thousand, fifty-four".