18178766142 has 16 divisors (see below), whose sum is σ = 36359371152. Its totient is φ = 6059282240.

The previous prime is 18178766101. The next prime is 18178766143. The reversal of 18178766142 is 24166787181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18178766143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74968 + ... + 204884.

It is an arithmetic number, because the mean of its divisors is an integer number (2272460697).

Almost surely, 2^18178766142 is an apocalyptic number.

18178766142 is an abundant number, since it is smaller than the sum of its proper divisors (18180605010).

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

18178766142 is a wasteful number, since it uses less digits than its factorization.

18178766142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153243.

The product of its digits is 903168, while the sum is 51.

The spelling of 18178766142 in words is "eighteen billion, one hundred seventy-eight million, seven hundred sixty-six thousand, one hundred forty-two".