17172716061 has 4 divisors (see below), whose sum is σ = 22896954752. Its totient is φ = 11448477372.

The previous prime is 17172716047. The next prime is 17172716069. The reversal of 17172716061 is 16061727171.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 17172716061 - 2¹⁵ = 17172683293 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17172716069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2862119341 + ... + 2862119346.

It is an arithmetic number, because the mean of its divisors is an integer number (5724238688).

Almost surely, 2^17172716061 is an apocalyptic number.

It is an amenable number.

17172716061 is a deficient number, since it is larger than the sum of its proper divisors (5724238691).

17172716061 is an equidigital number, since it uses as much as digits as its factorization.

17172716061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5724238690.

The product of its (nonzero) digits is 24696, while the sum is 39.

The spelling of 17172716061 in words is "seventeen billion, one hundred seventy-two million, seven hundred sixteen thousand, sixty-one".