16860072180 has 192 divisors, whose sum is σ = 58001448960. Its totient is φ = 3573144576.

The previous prime is 16860072179. The next prime is 16860072197. The reversal of 16860072180 is 8127006861.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 352584 + ... + 397536.

It is an arithmetic number, because the mean of its divisors is an integer number (302090880).

Almost surely, 2^16860072180 is an apocalyptic number.

16860072180 is a gapful number since it is divisible by the number (10) 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 16860072180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29000724480).

16860072180 is an abundant number, since it is smaller than the sum of its proper divisors (41141376780).

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

16860072180 is a wasteful number, since it uses less digits than its factorization.

16860072180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45038 (or 45036 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The spelling of 16860072180 in words is "sixteen billion, eight hundred sixty million, seventy-two thousand, one hundred eighty".