18099544080240 has 960 divisors, whose sum is σ = 71901829988352. Its totient is φ = 3994350796800.

The previous prime is 18099544080229. The next prime is 18099544080251. The reversal of 18099544080240 is 4208044599081.

It is a happy number.

18099544080240 is a `hidden beast` number, since 1 + 8 + 0 + 99 + 544 + 0 + 8 + 0 + 2 + 4 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (18099544080229) and next prime (18099544080251).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 16559509134 + ... + 16559510226.

Almost surely, 2^{18099544080240} is an apocalyptic number.

18099544080240 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 18099544080240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35950914994176).

18099544080240 is an abundant number, since it is smaller than the sum of its proper divisors (53802285908112).

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

18099544080240 is a wasteful number, since it uses less digits than its factorization.

18099544080240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1918 (or 1909 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 54.

The spelling of 18099544080240 in words is "eighteen trillion, ninety-nine billion, five hundred forty-four million, eighty thousand, two hundred forty".