65321088 has 128 divisors (see below), whose sum is σ = 208896000. Its totient is φ = 17667072.

The previous prime is 65321059. The next prime is 65321129. The reversal of 65321088 is 88012356.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

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 15 ways as a sum of consecutive naturals, for example, 50433 + ... + 51711.

It is an arithmetic number, because the mean of its divisors is an integer number (1632000).

Almost surely, 2^65321088 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 65321088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104448000).

65321088 is an abundant number, since it is smaller than the sum of its proper divisors (143574912).

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

65321088 is a wasteful number, since it uses less digits than its factorization.

65321088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322 (or 1310 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 65321088 is about 8082.1462496047. The cubic root of 65321088 is about 402.7335434634.

The spelling of 65321088 in words is "sixty-five million, three hundred twenty-one thousand, eighty-eight".