18118464000 has 1280 divisors, whose sum is σ = 79788893184. Its totient is φ = 3538944000.

The previous prime is 18118463999. The next prime is 18118464019. The reversal of 18118464000 is 46481181.

It is a tau number, because it is divible by the number of its divisors (1280).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 297023970 + ... + 297024030.

Almost surely, 2^18118464000 is an apocalyptic number.

18118464000 is a gapful number since it is divisible by the number (10) 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 18118464000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39894446592).

18118464000 is an abundant number, since it is smaller than the sum of its proper divisors (61670429184).

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

18118464000 is a wasteful number, since it uses less digits than its factorization.

18118464000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 33.

The spelling of 18118464000 in words is "eighteen billion, one hundred eighteen million, four hundred sixty-four thousand".