1716375050221 has 32 divisors (see below), whose sum is σ = 1984091379200. Its totient is φ = 1471546802880.

The previous prime is 1716375050213. The next prime is 1716375050309. The reversal of 1716375050221 is 1220505736171.

It is a cyclic number.

It is not a de Polignac number, because 1716375050221 - 2³ = 1716375050213 is a prime.

It is a super-2 number, since 2×1716375050221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1716375050321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3246070 + ... + 3737608.

It is an arithmetic number, because the mean of its divisors is an integer number (62002855600).

Almost surely, 2^{1716375050221} is an apocalyptic number.

It is an amenable number.

1716375050221 is a deficient number, since it is larger than the sum of its proper divisors (267716328979).

1716375050221 is a wasteful number, since it uses less digits than its factorization.

1716375050221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491849.

The product of its (nonzero) digits is 88200, while the sum is 40.

The spelling of 1716375050221 in words is "one trillion, seven hundred sixteen billion, three hundred seventy-five million, fifty thousand, two hundred twenty-one".