18532018618344 has 1152 divisors, whose sum is σ = 67809709094400. Its totient is φ = 4465004544000.

The previous prime is 18532018618343. The next prime is 18532018618409. The reversal of 18532018618344 is 44381681023581.

It is a happy number.

18532018618344 is a `hidden beast` number, since 1 + 8 + 5 + 3 + 2 + 0 + 18 + 618 + 3 + 4 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (18532018618343) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 6616213744 + ... + 6616216544.

It is an arithmetic number, because the mean of its divisors is an integer number (58862594700).

Almost surely, 2^{18532018618344} is an apocalyptic number.

18532018618344 is a gapful number since it is divisible by the number (14) 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 18532018618344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33904854547200).

18532018618344 is an abundant number, since it is smaller than the sum of its proper divisors (49277690476056).

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

18532018618344 is a wasteful number, since it uses less digits than its factorization.

18532018618344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3007 (or 2989 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 54.

The spelling of 18532018618344 in words is "eighteen trillion, five hundred thirty-two billion, eighteen million, six hundred eighteen thousand, three hundred forty-four".