68165415 has 16 divisors (see below), whose sum is σ = 121183200. Its totient is φ = 36354816.

The previous prime is 68165413. The next prime is 68165423. The reversal of 68165415 is 51456186.

It is not a de Polignac number, because 68165415 - 2¹ = 68165413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68165415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68165413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252330 + ... + 252599.

It is an arithmetic number, because the mean of its divisors is an integer number (7573950).

Almost surely, 2^68165415 is an apocalyptic number.

68165415 is a deficient number, since it is larger than the sum of its proper divisors (53017785).

68165415 is a wasteful number, since it uses less digits than its factorization.

68165415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504943 (or 504937 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 68165415 is about 8256.2349167160. The cubic root of 68165415 is about 408.4962063941.

The spelling of 68165415 in words is "sixty-eight million, one hundred sixty-five thousand, four hundred fifteen".