67116161 has 4 divisors (see below), whose sum is σ = 76704192. Its totient is φ = 57528132.

The previous prime is 67116157. The next prime is 67116169. The reversal of 67116161 is 16161176.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 67116161 - 2² = 67116157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67116169) 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, 4794005 + ... + 4794018.

It is an arithmetic number, because the mean of its divisors is an integer number (19176048).

Almost surely, 2^67116161 is an apocalyptic number.

It is an amenable number.

67116161 is a deficient number, since it is larger than the sum of its proper divisors (9588031).

67116161 is an equidigital number, since it uses as much as digits as its factorization.

67116161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9588030.

The product of its digits is 1512, while the sum is 29.

The square root of 67116161 is about 8192.4453614290. The cubic root of 67116161 is about 406.3893976538.

The spelling of 67116161 in words is "sixty-seven million, one hundred sixteen thousand, one hundred sixty-one".