65880384 has 28 divisors (see below), whose sum is σ = 174309024. Its totient is φ = 21960064.

The previous prime is 65880377. The next prime is 65880401. The reversal of 65880384 is 48308856.

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 3 ways as a sum of consecutive naturals, for example, 171372 + ... + 171755.

Almost surely, 2^65880384 is an apocalyptic number.

65880384 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

65880384 is an abundant number, since it is smaller than the sum of its proper divisors (108428640).

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

65880384 is a wasteful number, since it uses less digits than its factorization.

65880384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343142 (or 343132 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 65880384 is about 8116.6732101274. The cubic root of 65880384 is about 403.8797145415.

The spelling of 65880384 in words is "sixty-five million, eight hundred eighty thousand, three hundred eighty-four".