18616005999360 has 5760 divisors, whose sum is σ = 93544030863360. Its totient is φ = 3418354483200.

The previous prime is 18616005999343. The next prime is 18616005999389. The reversal of 18616005999360 is 6399950061681.

18616005999360 is a `hidden beast` number, since 1 + 8 + 6 + 1 + 6 + 0 + 0 + 599 + 9 + 36 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (5760).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 639 ways as a sum of consecutive naturals, for example, 173981364427 + ... + 173981364533.

It is an arithmetic number, because the mean of its divisors is an integer number (16240283136).

Almost surely, 2^{18616005999360} is an apocalyptic number.

18616005999360 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 18616005999360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46772015431680).

18616005999360 is an abundant number, since it is smaller than the sum of its proper divisors (74928024864000).

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

18616005999360 is a wasteful number, since it uses less digits than its factorization.

18616005999360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 18895680, while the sum is 63.

The spelling of 18616005999360 in words is "eighteen trillion, six hundred sixteen billion, five million, nine hundred ninety-nine thousand, three hundred sixty".