65106161 has 4 divisors (see below), whose sum is σ = 65127924. Its totient is φ = 65084400.

The previous prime is 65106127. The next prime is 65106163. The reversal of 65106161 is 16160156.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 60155536 + 4950625 = 7756^2 + 2225^2 .

It is a cyclic number.

It is not a de Polignac number, because 65106161 - 2¹⁰ = 65105137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65106161.

It is not an unprimeable number, because it can be changed into a prime (65106163) 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, 5510 + ... + 12671.

It is an arithmetic number, because the mean of its divisors is an integer number (16281981).

Almost surely, 2^65106161 is an apocalyptic number.

It is an amenable number.

65106161 is a deficient number, since it is larger than the sum of its proper divisors (21763).

65106161 is a wasteful number, since it uses less digits than its factorization.

65106161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21762.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 65106161 is about 8068.8388879689. The cubic root of 65106161 is about 402.2913512934.

The spelling of 65106161 in words is "sixty-five million, one hundred six thousand, one hundred sixty-one".