664114161 has 8 divisors (see below), whose sum is σ = 885872224. Its totient is φ = 442549440.

The previous prime is 664114127. The next prime is 664114247. The reversal of 664114161 is 161411466.

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

It is not a de Polignac number, because 664114161 - 2¹⁵ = 664081393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (664114261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40120 + ... + 54201.

It is an arithmetic number, because the mean of its divisors is an integer number (110734028).

Almost surely, 2^664114161 is an apocalyptic number.

It is an amenable number.

664114161 is a deficient number, since it is larger than the sum of its proper divisors (221758063).

664114161 is a wasteful number, since it uses less digits than its factorization.

664114161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96671.

The product of its digits is 3456, while the sum is 30.

The square root of 664114161 is about 25770.4125112502. The cubic root of 664114161 is about 872.4641292522.

It can be divided in two parts, 6641 and 14161, that added together give a palindrome (20802).

The spelling of 664114161 in words is "six hundred sixty-four million, one hundred fourteen thousand, one hundred sixty-one".