66237093 has 24 divisors (see below), whose sum is σ = 104209560. Its totient is φ = 40296960.

The previous prime is 66237089. The next prime is 66237103. The reversal of 66237093 is 39073266.

It can be written as a sum of positive squares in 4 ways, for example, as 675684 + 65561409 = 822^2 + 8097^2 .

It is not a de Polignac number, because 66237093 - 2² = 66237089 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66237293) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7233 + ... + 13593.

It is an arithmetic number, because the mean of its divisors is an integer number (4342065).

Almost surely, 2^66237093 is an apocalyptic number.

It is an amenable number.

66237093 is a deficient number, since it is larger than the sum of its proper divisors (37972467).

66237093 is a wasteful number, since it uses less digits than its factorization.

66237093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6469 (or 6466 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 36.

The square root of 66237093 is about 8138.6173887215. The cubic root of 66237093 is about 404.6073377583.

The spelling of 66237093 in words is "sixty-six million, two hundred thirty-seven thousand, ninety-three".