66485088 has 72 divisors (see below), whose sum is σ = 197306928. Its totient is φ = 21196032.

The previous prime is 66485087. The next prime is 66485093. The reversal of 66485088 is 88058466.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66485087) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1606 + ... + 11642.

It is an arithmetic number, because the mean of its divisors is an integer number (2740374).

Almost surely, 2^66485088 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 66485088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98653464).

66485088 is an abundant number, since it is smaller than the sum of its proper divisors (130821840).

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

66485088 is a wasteful number, since it uses less digits than its factorization.

66485088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10076 (or 10065 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The square root of 66485088 is about 8153.8388505047. The cubic root of 66485088 is about 405.1116655968. Note that the first 3 decimals are identical.

The spelling of 66485088 in words is "sixty-six million, four hundred eighty-five thousand, eighty-eight".