66327653 has 16 divisors (see below), whose sum is σ = 79380480. Its totient is φ = 54187056.

The previous prime is 66327647. The next prime is 66327671. The reversal of 66327653 is 35672366.

66327653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 66327653 - 2⁴ = 66327637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66327683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60476 + ... + 61562.

It is an arithmetic number, because the mean of its divisors is an integer number (4961280).

Almost surely, 2^66327653 is an apocalyptic number.

It is an amenable number.

66327653 is a deficient number, since it is larger than the sum of its proper divisors (13052827).

66327653 is a wasteful number, since it uses less digits than its factorization.

66327653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1496.

The product of its digits is 136080, while the sum is 38.

The square root of 66327653 is about 8144.1790869307. The cubic root of 66327653 is about 404.7916481538.

The spelling of 66327653 in words is "sixty-six million, three hundred twenty-seven thousand, six hundred fifty-three".