65889960 has 64 divisors (see below), whose sum is σ = 209304000. Its totient is φ = 16536576.

The previous prime is 65889931. The next prime is 65889997. The reversal of 65889960 is 6998856.

It is a Harshad number since it is a multiple of its sum of digits (51).

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, 14110 + ... + 18189.

It is an arithmetic number, because the mean of its divisors is an integer number (3270375).

Almost surely, 2^65889960 is an apocalyptic number.

65889960 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65889960 is an abundant number, since it is smaller than the sum of its proper divisors (143414040).

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

65889960 is a wasteful number, since it uses less digits than its factorization.

65889960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32330 (or 32326 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 51.

The square root of 65889960 is about 8117.2630855480. The cubic root of 65889960 is about 403.8992821504.

The spelling of 65889960 in words is "sixty-five million, eight hundred eighty-nine thousand, nine hundred sixty".