18259666531152 has 160 divisors (see below), whose sum is σ = 51051137518080. Its totient is φ = 5611353968640.

The previous prime is 18259666531133. The next prime is 18259666531157. The reversal of 18259666531152 is 25113566695281.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18259666531157) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 721243 + ... + 6086010.

It is an arithmetic number, because the mean of its divisors is an integer number (319069609488).

Almost surely, 2^{18259666531152} is an apocalyptic number.

18259666531152 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 18259666531152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25525568759040).

18259666531152 is an abundant number, since it is smaller than the sum of its proper divisors (32791470986928).

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

18259666531152 is a wasteful number, since it uses less digits than its factorization.

18259666531152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6807381 (or 6807375 counting only the distinct ones).

The product of its digits is 23328000, while the sum is 60.

The spelling of 18259666531152 in words is "eighteen trillion, two hundred fifty-nine billion, six hundred sixty-six million, five hundred thirty-one thousand, one hundred fifty-two".