66488 has 8 divisors (see below), whose sum is σ = 124680. Its totient is φ = 33240.

The previous prime is 66467. The next prime is 66491. The reversal of 66488 is 88466.

66488 is nontrivially palindromic in base 11.

It is a tau number, because it is divible by the number of its divisors (8).

It is a d-powerful number, because it can be written as 6³ + 6³ + 4⁸ + 8 + 8³ .

It is a congruent number.

It is an unprimeable number.

66488 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4148 + ... + 4163.

It is an arithmetic number, because the mean of its divisors is an integer number (15585).

2⁶⁶⁴⁸⁸ is an apocalyptic number.

It is an amenable number.

66488 is a deficient number, since it is larger than the sum of its proper divisors (58192).

66488 is a wasteful number, since it uses less digits than its factorization.

66488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8317 (or 8313 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The square root of 66488 is about 257.8526711128. The cubic root of 66488 is about 40.5117580046.

The spelling of 66488 in words is "sixty-six thousand, four hundred eighty-eight".