1712166245621 has 8 divisors (see below), whose sum is σ = 1843930055520. Its totient is φ = 1580410823472.

The previous prime is 1712166245609. The next prime is 1712166245623. The reversal of 1712166245621 is 1265426612171.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1712166245621 - 2⁶ = 1712166245557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1712166245623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1669751 + ... + 2492468.

It is an arithmetic number, because the mean of its divisors is an integer number (230491256940).

Almost surely, 2^{1712166245621} is an apocalyptic number.

It is an amenable number.

1712166245621 is a deficient number, since it is larger than the sum of its proper divisors (131763809899).

1712166245621 is a wasteful number, since it uses less digits than its factorization.

1712166245621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4193875.

The product of its digits is 241920, while the sum is 44.

The spelling of 1712166245621 in words is "one trillion, seven hundred twelve billion, one hundred sixty-six million, two hundred forty-five thousand, six hundred twenty-one".