18497655452160 has 320 divisors, whose sum is σ = 67103208691200. Its totient is φ = 4827756036096.

The previous prime is 18497655452147. The next prime is 18497655452167. The reversal of 18497655452160 is 6125455679481.

It is a happy number.

18497655452160 is a `hidden beast` number, since 1 + 8 + 4 + 9 + 7 + 6 + 5 + 545 + 21 + 60 = 666.

It is a tau number, because it is divible by the number of its divisors (320).

It is not an unprimeable number, because it can be changed into a prime (18497655452167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 401656 + ... + 6095624.

It is an arithmetic number, because the mean of its divisors is an integer number (209697527160).

Almost surely, 2^{18497655452160} is an apocalyptic number.

18497655452160 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 18497655452160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33551604345600).

18497655452160 is an abundant number, since it is smaller than the sum of its proper divisors (48605553239040).

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

18497655452160 is an equidigital number, since it uses as much as digits as its factorization.

18497655452160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5694048 (or 5694026 counting only the distinct ones).

The product of its (nonzero) digits is 72576000, while the sum is 63.

The spelling of 18497655452160 in words is "eighteen trillion, four hundred ninety-seven billion, six hundred fifty-five million, four hundred fifty-two thousand, one hundred sixty".