18778666335060 has 96 divisors (see below), whose sum is σ = 55355101401600. Its totient is φ = 4743445276800.

The previous prime is 18778666335029. The next prime is 18778666335083. The reversal of 18778666335060 is 6053366687781.

It is a junction number, because it is equal to n+sod(n) for n = 18778666334982 and 18778666335000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7388751 + ... + 9599529.

It is an arithmetic number, because the mean of its divisors is an integer number (576615639600).

Almost surely, 2^{18778666335060} is an apocalyptic number.

18778666335060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18778666335060 is an abundant number, since it is smaller than the sum of its proper divisors (36576435066540).

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

18778666335060 is a wasteful number, since it uses less digits than its factorization.

18778666335060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2218261 (or 2218259 counting only the distinct ones).

The product of its (nonzero) digits is 182891520, while the sum is 66.

The spelling of 18778666335060 in words is "eighteen trillion, seven hundred seventy-eight billion, six hundred sixty-six million, three hundred thirty-five thousand, sixty".