65529968 has 80 divisors (see below), whose sum is σ = 155418624. Its totient is φ = 26127360.

The previous prime is 65529941. The next prime is 65529973. The reversal of 65529968 is 86992556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 241673 + ... + 241943.

Almost surely, 2^65529968 is an apocalyptic number.

65529968 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65529968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77709312).

65529968 is an abundant number, since it is smaller than the sum of its proper divisors (89888656).

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

65529968 is a wasteful number, since it uses less digits than its factorization.

65529968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430 (or 424 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 50.

The square root of 65529968 is about 8095.0582456212. The cubic root of 65529968 is about 403.1623660494.

The spelling of 65529968 in words is "sixty-five million, five hundred twenty-nine thousand, nine hundred sixty-eight".