66924011 has 20 divisors (see below), whose sum is σ = 84261360. Its totient is φ = 52068720.

The previous prime is 66924007. The next prime is 66924029. The reversal of 66924011 is 11042966.

It is not a de Polignac number, because 66924011 - 2² = 66924007 is a prime.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66924511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 102161 + ... + 102813.

It is an arithmetic number, because the mean of its divisors is an integer number (4213068).

Almost surely, 2^66924011 is an apocalyptic number.

66924011 is a deficient number, since it is larger than the sum of its proper divisors (17337349).

66924011 is an frugal number, since it uses more digits than its factorization.

66924011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704 (or 671 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 66924011 is about 8180.7096880405. The cubic root of 66924011 is about 406.0012032126.

Adding to 66924011 its reverse (11042966), we get a palindrome (77966977).

The spelling of 66924011 in words is "sixty-six million, nine hundred twenty-four thousand, eleven".