65508912 has 240 divisors, whose sum is σ = 227485440. Its totient is φ = 17853696.

The previous prime is 65508881. The next prime is 65508953. The reversal of 65508912 is 21980556.

It is a happy number.

65508912 is a `hidden beast` number, since 65 + 508 + 91 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 789223 + ... + 789305.

It is an arithmetic number, because the mean of its divisors is an integer number (947856).

Almost surely, 2^65508912 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 65508912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113742720).

65508912 is an abundant number, since it is smaller than the sum of its proper divisors (161976528).

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

65508912 is a wasteful number, since it uses less digits than its factorization.

65508912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 65508912 is about 8093.7575945910. The cubic root of 65508912 is about 403.1191802297.

The spelling of 65508912 in words is "sixty-five million, five hundred eight thousand, nine hundred twelve".