66027648 has 32 divisors (see below), whose sum is σ = 175386960. Its totient is φ = 22009088.

The previous prime is 66027623. The next prime is 66027649. The reversal of 66027648 is 84672066.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (66027649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85590 + ... + 86357.

Almost surely, 2^66027648 is an apocalyptic number.

It is an amenable number.

66027648 is an abundant number, since it is smaller than the sum of its proper divisors (109359312).

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

66027648 is a wasteful number, since it uses less digits than its factorization.

66027648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171964 (or 171952 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 66027648 is about 8125.7398432389. The cubic root of 66027648 is about 404.1804245904.

The spelling of 66027648 in words is "sixty-six million, twenty-seven thousand, six hundred forty-eight".