18165274529112 has 576 divisors, whose sum is σ = 55614335961600. Its totient is φ = 5343687106560.

The previous prime is 18165274529111. The next prime is 18165274529119. The reversal of 18165274529112 is 21192547256181.

18165274529112 is a `hidden beast` number, since 1 + 8 + 16 + 527 + 4 + 5 + 2 + 91 + 12 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18165274529111) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 13751153412 + ... + 13751154732.

It is an arithmetic number, because the mean of its divisors is an integer number (96552666600).

Almost surely, 2^{18165274529112} is an apocalyptic number.

18165274529112 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 18165274529112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27807167980800).

18165274529112 is an abundant number, since it is smaller than the sum of its proper divisors (37449061432488).

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

18165274529112 is a wasteful number, since it uses less digits than its factorization.

18165274529112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1936 (or 1912 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 54.

The spelling of 18165274529112 in words is "eighteen trillion, one hundred sixty-five billion, two hundred seventy-four million, five hundred twenty-nine thousand, one hundred twelve".