66367147 has 16 divisors (see below), whose sum is σ = 83884032. Its totient is φ = 51001920.

The previous prime is 66367141. The next prime is 66367237. The reversal of 66367147 is 74176366.

It is a cyclic number.

It is not a de Polignac number, because 66367147 - 2²³ = 57978539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66367141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283 + ... + 11524.

It is an arithmetic number, because the mean of its divisors is an integer number (5242752).

Almost surely, 2^66367147 is an apocalyptic number.

66367147 is a deficient number, since it is larger than the sum of its proper divisors (17516885).

66367147 is a wasteful number, since it uses less digits than its factorization.

66367147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11898.

The product of its digits is 127008, while the sum is 40.

The square root of 66367147 is about 8146.6034026458. The cubic root of 66367147 is about 404.8719749789.

The spelling of 66367147 in words is "sixty-six million, three hundred sixty-seven thousand, one hundred forty-seven".