66364577 has 8 divisors (see below), whose sum is σ = 67173120. Its totient is φ = 65561040.

The previous prime is 66364553. The next prime is 66364603. The reversal of 66364577 is 77546366.

66364577 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66364577 - 2¹⁰ = 66363553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66364537) 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 7 ways as a sum of consecutive naturals, for example, 29927 + ... + 32067.

It is an arithmetic number, because the mean of its divisors is an integer number (8396640).

Almost surely, 2^66364577 is an apocalyptic number.

It is an amenable number.

66364577 is a deficient number, since it is larger than the sum of its proper divisors (808543).

66364577 is a wasteful number, since it uses less digits than its factorization.

66364577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2503.

The product of its digits is 635040, while the sum is 44.

The square root of 66364577 is about 8146.4456666696. The cubic root of 66364577 is about 404.8667488269.

The spelling of 66364577 in words is "sixty-six million, three hundred sixty-four thousand, five hundred seventy-seven".