18016630878 has 8 divisors (see below), whose sum is σ = 36033261768. Its totient is φ = 6005543624.

The previous prime is 18016630847. The next prime is 18016630883. The reversal of 18016630878 is 87803661081.

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

18016630878 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1501385901 + ... + 1501385912.

It is an arithmetic number, because the mean of its divisors is an integer number (4504157721).

Almost surely, 2^18016630878 is an apocalyptic number.

18016630878 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18016630878 is a wasteful number, since it uses less digits than its factorization.

18016630878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3002771818.

The product of its (nonzero) digits is 387072, while the sum is 48.

The spelling of 18016630878 in words is "eighteen billion, sixteen million, six hundred thirty thousand, eight hundred seventy-eight".