65161265130 has 256 divisors, whose sum is σ = 197522841600. Its totient is φ = 15153557760.

The previous prime is 65161265129. The next prime is 65161265167. The reversal of 65161265130 is 3156216156.

65161265130 is a `hidden beast` number, since 6 + 5 + 1 + 612 + 6 + 5 + 1 + 30 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 28742257 + ... + 28744523.

It is an arithmetic number, because the mean of its divisors is an integer number (771573600).

Almost surely, 2^65161265130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65161265130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98761420800).

65161265130 is an abundant number, since it is smaller than the sum of its proper divisors (132361576470).

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

65161265130 is a wasteful number, since it uses less digits than its factorization.

65161265130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2746 (or 2740 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

It can be divided in two parts, 6516126 and 5130, that added together give a palindrome (6521256).

The spelling of 65161265130 in words is "sixty-five billion, one hundred sixty-one million, two hundred sixty-five thousand, one hundred thirty".