18664024522752 has 1080 divisors, whose sum is σ = 66752695429056. Its totient is φ = 5007568011264.

The previous prime is 18664024522723. The next prime is 18664024522783. The reversal of 18664024522752 is 25722542046681.

18664024522752 is a `hidden beast` number, since 1 + 8 + 6 + 6 + 40 + 2 + 4 + 522 + 75 + 2 = 666.

It is a super-2 number, since 2×18664024522752² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 42130980643 + ... + 42130981085.

Almost surely, 2^{18664024522752} is an apocalyptic number.

18664024522752 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 18664024522752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33376347714528).

18664024522752 is an abundant number, since it is smaller than the sum of its proper divisors (48088670906304).

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

18664024522752 is an frugal number, since it uses more digits than its factorization.

18664024522752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529 (or 472 counting only the distinct ones).

The product of its (nonzero) digits is 12902400, while the sum is 54.

The spelling of 18664024522752 in words is "eighteen trillion, six hundred sixty-four billion, twenty-four million, five hundred twenty-two thousand, seven hundred fifty-two".