4066657213 has 4 divisors (see below), whose sum is σ = 4084893568. Its totient is φ = 4048420860.

The previous prime is 4066657183. The next prime is 4066657219. The reversal of 4066657213 is 3127566604.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4066657213 - 2⁵ = 4066657181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4066657219) 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 3 ways as a sum of consecutive naturals, for example, 9117843 + ... + 9118288.

It is an arithmetic number, because the mean of its divisors is an integer number (1021223392).

Almost surely, 2^4066657213 is an apocalyptic number.

It is an amenable number.

4066657213 is a deficient number, since it is larger than the sum of its proper divisors (18236355).

4066657213 is a wasteful number, since it uses less digits than its factorization.

4066657213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18236354.

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 4066657213 is about 63770.3474429927. The cubic root of 4066657213 is about 1596.1701646495.

It can be divided in two parts, 40666 and 57213, that added together give a palindrome (97879).

The spelling of 4066657213 in words is "four billion, sixty-six million, six hundred fifty-seven thousand, two hundred thirteen".