65331860 has 48 divisors (see below), whose sum is σ = 153340992. Its totient is φ = 23174400.

The previous prime is 65331859. The next prime is 65331863. The reversal of 65331860 is 6813356.

65331860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65331863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5399 + ... + 12641.

It is an arithmetic number, because the mean of its divisors is an integer number (3194604).

Almost surely, 2^65331860 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 65331860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76670496).

65331860 is an abundant number, since it is smaller than the sum of its proper divisors (88009132).

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

65331860 is a wasteful number, since it uses less digits than its factorization.

65331860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7304 (or 7302 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 65331860 is about 8082.8126292770. The cubic root of 65331860 is about 402.7556803026.

The spelling of 65331860 in words is "sixty-five million, three hundred thirty-one thousand, eight hundred sixty".