66488568 has 32 divisors (see below), whose sum is σ = 167346000. Its totient is φ = 22012928.

The previous prime is 66488567. The next prime is 66488573. The reversal of 66488568 is 86588466.

It is a self number, because there is not a number n which added to its sum of digits gives 66488568.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66488563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5721 + ... + 12872.

Almost surely, 2^66488568 is an apocalyptic number.

It is an amenable number.

66488568 is an abundant number, since it is smaller than the sum of its proper divisors (100857432).

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

66488568 is a wasteful number, since it uses less digits than its factorization.

66488568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18751 (or 18747 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 51.

The square root of 66488568 is about 8154.0522441299. The cubic root of 66488568 is about 405.1187336679.

The spelling of 66488568 in words is "sixty-six million, four hundred eighty-eight thousand, five hundred sixty-eight".