66576488 has 64 divisors (see below), whose sum is σ = 145566720. Its totient is φ = 28211200.

The previous prime is 66576481. The next prime is 66576509. The reversal of 66576488 is 88467566.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (66576481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285620 + ... + 285852.

It is an arithmetic number, because the mean of its divisors is an integer number (2274480).

Almost surely, 2^66576488 is an apocalyptic number.

66576488 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66576488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72783360).

66576488 is an abundant number, since it is smaller than the sum of its proper divisors (78990232).

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

66576488 is a wasteful number, since it uses less digits than its factorization.

66576488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458 (or 454 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 50.

The square root of 66576488 is about 8159.4416475639. The cubic root of 66576488 is about 405.2972222514.

The spelling of 66576488 in words is "sixty-six million, five hundred seventy-six thousand, four hundred eighty-eight".