2172113544500 has 96 divisors (see below), whose sum is σ = 4996824094080. Its totient is φ = 822581107200.

The previous prime is 2172113544493. The next prime is 2172113544533. The reversal of 2172113544500 is 54453112712.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14679887 + ... + 14827113.

It is an arithmetic number, because the mean of its divisors is an integer number (52050250980).

Almost surely, 2^{2172113544500} is an apocalyptic number.

2172113544500 is a gapful number since it is divisible by the number (20) 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 2172113544500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2498412047040).

2172113544500 is an abundant number, since it is smaller than the sum of its proper divisors (2824710549580).

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

2172113544500 is a wasteful number, since it uses less digits than its factorization.

2172113544500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148818 (or 148806 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The spelling of 2172113544500 in words is "two trillion, one hundred seventy-two billion, one hundred thirteen million, five hundred forty-four thousand, five hundred".