68160517 has 4 divisors (see below), whose sum is σ = 69315840. Its totient is φ = 67005196.

The previous prime is 68160511. The next prime is 68160529. The reversal of 68160517 is 71506186.

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 a cyclic number.

It is not a de Polignac number, because 68160517 - 2¹⁹ = 67636229 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 (68160511) 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, 577573 + ... + 577690.

It is an arithmetic number, because the mean of its divisors is an integer number (17328960).

Almost surely, 2^68160517 is an apocalyptic number.

It is an amenable number.

68160517 is a deficient number, since it is larger than the sum of its proper divisors (1155323).

68160517 is a wasteful number, since it uses less digits than its factorization.

68160517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155322.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 68160517 is about 8255.9382870756. The cubic root of 68160517 is about 408.4864220465.

The spelling of 68160517 in words is "sixty-eight million, one hundred sixty thousand, five hundred seventeen".