66027393 has 20 divisors (see below), whose sum is σ = 98852160. Its totient is φ = 43920792.

The previous prime is 66027391. The next prime is 66027397. The reversal of 66027393 is 39372066.

It is not a de Polignac number, because 66027393 - 2¹ = 66027391 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66027391) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 71388 + ... + 72306.

It is an arithmetic number, because the mean of its divisors is an integer number (4942608).

Almost surely, 2^66027393 is an apocalyptic number.

It is an amenable number.

66027393 is a deficient number, since it is larger than the sum of its proper divisors (32824767).

66027393 is an equidigital number, since it uses as much as digits as its factorization.

66027393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1818 (or 1809 counting only the distinct ones).

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

The square root of 66027393 is about 8125.7241523448. The cubic root of 66027393 is about 404.1799042723.

The spelling of 66027393 in words is "sixty-six million, twenty-seven thousand, three hundred ninety-three".