181583212465142 has 8 divisors (see below), whose sum is σ = 288396866856456. Its totient is φ = 85450923512992.

The previous prime is 181583212465141. The next prime is 181583212465177. The reversal of 181583212465142 is 241564212385181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181583212465141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2670341359748 + ... + 2670341359815.

It is an arithmetic number, because the mean of its divisors is an integer number (36049608357057).

Almost surely, 2^{181583212465142} is an apocalyptic number.

181583212465142 is a deficient number, since it is larger than the sum of its proper divisors (106813654391314).

181583212465142 is a wasteful number, since it uses less digits than its factorization.

181583212465142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5340682719582.

The product of its digits is 3686400, while the sum is 53.

The spelling of 181583212465142 in words is "one hundred eighty-one trillion, five hundred eighty-three billion, two hundred twelve million, four hundred sixty-five thousand, one hundred forty-two".