65310080 has 64 divisors (see below), whose sum is σ = 170344080. Its totient is φ = 23746560.

The previous prime is 65310079. The next prime is 65310097. The reversal of 65310080 is 8001356.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2402 + ... + 11678.

Almost surely, 2^65310080 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 65310080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85172040).

65310080 is an abundant number, since it is smaller than the sum of its proper divisors (105034000).

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

65310080 is a wasteful number, since it uses less digits than its factorization.

65310080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9307 (or 9295 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 65310080 is about 8081.4652136850. The cubic root of 65310080 is about 402.7109191214.

The spelling of 65310080 in words is "sixty-five million, three hundred ten thousand, eighty".