6572662221 has 16 divisors (see below), whose sum is σ = 8921803968. Its totient is φ = 4302883200.

The previous prime is 6572662199. The next prime is 6572662249. The reversal of 6572662221 is 1222662756.

It is not a de Polignac number, because 6572662221 - 2²¹ = 6570565069 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6572662221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6572662021) 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 15 ways as a sum of consecutive naturals, for example, 83806 + ... + 142016.

It is an arithmetic number, because the mean of its divisors is an integer number (557612748).

Almost surely, 2^6572662221 is an apocalyptic number.

6572662221 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

6572662221 is a deficient number, since it is larger than the sum of its proper divisors (2349141747).

6572662221 is a wasteful number, since it uses less digits than its factorization.

6572662221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58892.

The product of its digits is 120960, while the sum is 39.

The square root of 6572662221 is about 81071.9570566790. The cubic root of 6572662221 is about 1873.1839930222.

The spelling of 6572662221 in words is "six billion, five hundred seventy-two million, six hundred sixty-two thousand, two hundred twenty-one".