68442165 has 64 divisors (see below), whose sum is σ = 134611200. Its totient is φ = 33125760.

The previous prime is 68442151. The next prime is 68442167. The reversal of 68442165 is 56124486.

It is not a de Polignac number, because 68442165 - 2⁸ = 68441909 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68442167) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 120001 + ... + 120569.

It is an arithmetic number, because the mean of its divisors is an integer number (2103300).

Almost surely, 2^68442165 is an apocalyptic number.

It is an amenable number.

68442165 is a deficient number, since it is larger than the sum of its proper divisors (66169035).

68442165 is an equidigital number, since it uses as much as digits as its factorization.

68442165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606 (or 588 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 68442165 is about 8272.9780006960. The cubic root of 68442165 is about 409.0482882870.

It can be divided in two parts, 684421 and 65, that added together give a palindrome (684486).

The spelling of 68442165 in words is "sixty-eight million, four hundred forty-two thousand, one hundred sixty-five".