65508080 has 40 divisors (see below), whose sum is σ = 166154544. Its totient is φ = 23820800.

The previous prime is 65508031. The next prime is 65508097. The reversal of 65508080 is 8080556.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36341 + ... + 38100.

Almost surely, 2^65508080 is an apocalyptic number.

It is an amenable number.

65508080 is an abundant number, since it is smaller than the sum of its proper divisors (100646464).

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

65508080 is a wasteful number, since it uses less digits than its factorization.

65508080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74465 (or 74459 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 65508080 is about 8093.7061967927. The cubic root of 65508080 is about 403.1174736091.

The spelling of 65508080 in words is "sixty-five million, five hundred eight thousand, eighty".