68160311 has 4 divisors (see below), whose sum is σ = 68176824. Its totient is φ = 68143800.

The previous prime is 68160307. The next prime is 68160317. The reversal of 68160311 is 11306186.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 68160311 - 2² = 68160307 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 (68160317) 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, 4076 + ... + 12366.

It is an arithmetic number, because the mean of its divisors is an integer number (17044206).

Almost surely, 2^68160311 is an apocalyptic number.

68160311 is a deficient number, since it is larger than the sum of its proper divisors (16513).

68160311 is an equidigital number, since it uses as much as digits as its factorization.

68160311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16512.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 68160311 is about 8255.9258111977. The cubic root of 68160311 is about 408.4860105263.

Adding to 68160311 its reverse (11306186), we get a palindrome (79466497).

The spelling of 68160311 in words is "sixty-eight million, one hundred sixty thousand, three hundred eleven".