18606273056 has 96 divisors (see below), whose sum is σ = 42930340992. Its totient is φ = 7773511680.

The previous prime is 18606273041. The next prime is 18606273061. The reversal of 18606273056 is 65037260681.

It is a junction number, because it is equal to n+sod(n) for n = 18606272998 and 18606273016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1449386 + ... + 1462166.

It is an arithmetic number, because the mean of its divisors is an integer number (447191052).

Almost surely, 2^18606273056 is an apocalyptic number.

18606273056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18606273056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21465170496).

18606273056 is an abundant number, since it is smaller than the sum of its proper divisors (24324067936).

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

18606273056 is a wasteful number, since it uses less digits than its factorization.

18606273056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12962 (or 12954 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 18606273056 in words is "eighteen billion, six hundred six million, two hundred seventy-three thousand, fifty-six".