1716320545600 has 84 divisors (see below), whose sum is σ = 4224502968300. Its totient is φ = 686319861760.

The previous prime is 1716320545553. The next prime is 1716320545609. The reversal of 1716320545600 is 65450236171.

It can be written as a sum of positive squares in 6 ways, for example, as 140673004096 + 1575647541504 = 375064^2 + 1255248^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1716320545609) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5165286 + ... + 5487514.

Almost surely, 2^{1716320545600} is an apocalyptic number.

1716320545600 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 1716320545600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2112251484150).

1716320545600 is an abundant number, since it is smaller than the sum of its proper divisors (2508182422700).

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

1716320545600 is a wasteful number, since it uses less digits than its factorization.

1716320545600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325580 (or 325565 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 1716320545600 in words is "one trillion, seven hundred sixteen billion, three hundred twenty million, five hundred forty-five thousand, six hundred".