18026168832 has 480 divisors, whose sum is σ = 63664972800. Its totient is φ = 4795490304.

The previous prime is 18026168789. The next prime is 18026168869. The reversal of 18026168832 is 23886162081.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 41061669 + ... + 41062107.

It is an arithmetic number, because the mean of its divisors is an integer number (132635360).

Almost surely, 2^18026168832 is an apocalyptic number.

18026168832 is a gapful number since it is divisible by the number (12) 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 18026168832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31832486400).

18026168832 is an abundant number, since it is smaller than the sum of its proper divisors (45638803968).

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

18026168832 is a wasteful number, since it uses less digits than its factorization.

18026168832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556 (or 537 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The spelling of 18026168832 in words is "eighteen billion, twenty-six million, one hundred sixty-eight thousand, eight hundred thirty-two".