68161165 has 8 divisors (see below), whose sum is σ = 84614040. Its totient is φ = 52648512.

The previous prime is 68161153. The next prime is 68161183. The reversal of 68161165 is 56116186.

It can be written as a sum of positive squares in 4 ways, for example, as 7414729 + 60746436 = 2723^2 + 7794^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68161165 - 2¹⁵ = 68128397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68161165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234894 + ... + 235183.

It is an arithmetic number, because the mean of its divisors is an integer number (10576755).

Almost surely, 2^68161165 is an apocalyptic number.

It is an amenable number.

68161165 is a deficient number, since it is larger than the sum of its proper divisors (16452875).

68161165 is a wasteful number, since it uses less digits than its factorization.

68161165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470111.

The product of its digits is 8640, while the sum is 34.

The square root of 68161165 is about 8255.9775314617. The cubic root of 68161165 is about 408.4877165318.

The spelling of 68161165 in words is "sixty-eight million, one hundred sixty-one thousand, one hundred sixty-five".