66364867 has 8 divisors (see below), whose sum is σ = 70861824. Its totient is φ = 62002248.

The previous prime is 66364861. The next prime is 66364873. The reversal of 66364867 is 76846366.

It is an interprime number because it is at equal distance from previous prime (66364861) and next prime (66364873).

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 66364867 - 2¹¹ = 66362819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66364861) 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, 32563 + ... + 34540.

It is an arithmetic number, because the mean of its divisors is an integer number (8857728).

Almost surely, 2^66364867 is an apocalyptic number.

66364867 is a deficient number, since it is larger than the sum of its proper divisors (4496957).

66364867 is a wasteful number, since it uses less digits than its factorization.

66364867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67169.

The product of its digits is 870912, while the sum is 46.

The square root of 66364867 is about 8146.4634658237. The cubic root of 66364867 is about 404.8673385551.

The spelling of 66364867 in words is "sixty-six million, three hundred sixty-four thousand, eight hundred sixty-seven".