6666226593 has 16 divisors (see below), whose sum is σ = 9605856960. Its totient is φ = 4087790784.

The previous prime is 6666226591. The next prime is 6666226603. The reversal of 6666226593 is 3956226666.

It is not a de Polignac number, because 6666226593 - 2¹ = 6666226591 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6666226591) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 290958 + ... + 313031.

It is an arithmetic number, because the mean of its divisors is an integer number (600366060).

Almost surely, 2^6666226593 is an apocalyptic number.

It is an amenable number.

6666226593 is a deficient number, since it is larger than the sum of its proper divisors (2939630367).

6666226593 is a wasteful number, since it uses less digits than its factorization.

6666226593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604288.

The product of its digits is 4199040, while the sum is 51.

The square root of 6666226593 is about 81646.9631584666. The cubic root of 6666226593 is about 1882.0306443332.

The spelling of 6666226593 in words is "six billion, six hundred sixty-six million, two hundred twenty-six thousand, five hundred ninety-three".