68168165 has 16 divisors (see below), whose sum is σ = 89341056. Its totient is φ = 49627200.

The previous prime is 68168141. The next prime is 68168167. The reversal of 68168165 is 56186186.

It is a happy number.

It is not a de Polignac number, because 68168165 - 2¹² = 68164069 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 (68168167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2771 + ... + 12000.

It is an arithmetic number, because the mean of its divisors is an integer number (5583816).

Almost surely, 2^68168165 is an apocalyptic number.

68168165 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

68168165 is a deficient number, since it is larger than the sum of its proper divisors (21172891).

68168165 is a wasteful number, since it uses less digits than its factorization.

68168165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14860.

The product of its digits is 69120, while the sum is 41.

The square root of 68168165 is about 8256.4014558402. The cubic root of 68168165 is about 408.5016996464.

The spelling of 68168165 in words is "sixty-eight million, one hundred sixty-eight thousand, one hundred sixty-five".