66498 has 8 divisors (see below), whose sum is σ = 133008. Its totient is φ = 22164.

The previous prime is 66491. The next prime is 66499. The reversal of 66498 is 89466.

It is a sphenic number, since it is the product of 3 distinct primes.

66498 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (66491) by changing a digit.

66498 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5536 + ... + 5547.

It is an arithmetic number, because the mean of its divisors is an integer number (16626).

2⁶⁶⁴⁹⁸ is an apocalyptic number.

66498 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66504).

66498 is a wasteful number, since it uses less digits than its factorization.

66498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11088.

The product of its digits is 10368, while the sum is 33.

The square root of 66498 is about 257.8720613017. The cubic root of 66498 is about 40.5137889338.

The spelling of 66498 in words is "sixty-six thousand, four hundred ninety-eight".