65117161 has 8 divisors (see below), whose sum is σ = 68685920. Its totient is φ = 61562592.

The previous prime is 65117149. The next prime is 65117183. The reversal of 65117161 is 16171156.

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 65117161 - 2¹³ = 65108969 is a prime.

It is a super-3 number, since 3×65117161³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65117861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6661 + ... + 13213.

It is an arithmetic number, because the mean of its divisors is an integer number (8585740).

Almost surely, 2^65117161 is an apocalyptic number.

It is an amenable number.

65117161 is a deficient number, since it is larger than the sum of its proper divisors (3568759).

65117161 is a wasteful number, since it uses less digits than its factorization.

65117161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7095.

The product of its digits is 1260, while the sum is 28.

The square root of 65117161 is about 8069.5204938088. The cubic root of 65117161 is about 402.3140063724.

The spelling of 65117161 in words is "sixty-five million, one hundred seventeen thousand, one hundred sixty-one".