18660180882552 has 256 divisors, whose sum is σ = 53476960112640. Its totient is φ = 5374149120000.

The previous prime is 18660180882493. The next prime is 18660180882557. The reversal of 18660180882552 is 25528808106681.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18660180882557) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 325964652 + ... + 326021892.

It is an arithmetic number, because the mean of its divisors is an integer number (208894375440).

Almost surely, 2^{18660180882552} is an apocalyptic number.

18660180882552 is a gapful number since it is divisible by the number (12) 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 18660180882552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26738480056320).

18660180882552 is an abundant number, since it is smaller than the sum of its proper divisors (34816779230088).

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

18660180882552 is a wasteful number, since it uses less digits than its factorization.

18660180882552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58006 (or 58002 counting only the distinct ones).

The product of its (nonzero) digits is 14745600, while the sum is 60.

The spelling of 18660180882552 in words is "eighteen trillion, six hundred sixty billion, one hundred eighty million, eight hundred eighty-two thousand, five hundred fifty-two".