16845181872372 has 108 divisors (see below), whose sum is σ = 51694825946400. Its totient is φ = 4529796786432.

The previous prime is 16845181872371. The next prime is 16845181872377. The reversal of 16845181872372 is 27327818154861.

16845181872372 is a `hidden beast` number, since 1 + 6 + 8 + 4 + 5 + 181 + 87 + 2 + 372 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16845181872371) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 115577622 + ... + 115723277.

It is an arithmetic number, because the mean of its divisors is an integer number (478655795800).

Almost surely, 2^{16845181872372} is an apocalyptic number.

16845181872372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16845181872372 is an abundant number, since it is smaller than the sum of its proper divisors (34849644074028).

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

16845181872372 is a wasteful number, since it uses less digits than its factorization.

16845181872372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231300950 (or 231300928 counting only the distinct ones).

The product of its digits is 36126720, while the sum is 63.

The spelling of 16845181872372 in words is "sixteen trillion, eight hundred forty-five billion, one hundred eighty-one million, eight hundred seventy-two thousand, three hundred seventy-two".