2722158800172 has 108 divisors (see below), whose sum is σ = 8006095908720. Its totient is φ = 777599065152.

The previous prime is 2722158800159. The next prime is 2722158800261. The reversal of 2722158800172 is 2710088512272.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8520258 + ... + 8833974.

Almost surely, 2^{2722158800172} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2722158800172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4003047954360).

2722158800172 is an abundant number, since it is smaller than the sum of its proper divisors (5283937108548).

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

2722158800172 is a wasteful number, since it uses less digits than its factorization.

2722158800172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318660 (or 318648 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 45.

The spelling of 2722158800172 in words is "two trillion, seven hundred twenty-two billion, one hundred fifty-eight million, eight hundred thousand, one hundred seventy-two".