65161110616 has 96 divisors (see below), whose sum is σ = 143417645280. Its totient is φ = 27673228800.

The previous prime is 65161110613. The next prime is 65161110631. The reversal of 65161110616 is 61601116156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65161110613) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22064596 + ... + 22067548.

It is an arithmetic number, because the mean of its divisors is an integer number (1493933805).

Almost surely, 2^65161110616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65161110616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71708822640).

65161110616 is an abundant number, since it is smaller than the sum of its proper divisors (78256534664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65161110616 is a wasteful number, since it uses less digits than its factorization.

65161110616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3465 (or 3454 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 34.

The spelling of 65161110616 in words is "sixty-five billion, one hundred sixty-one million, one hundred ten thousand, six hundred sixteen".