6627065221 has 6 divisors (see below), whose sum is σ = 7709035110. Its totient is φ = 5680341576.

The previous prime is 6627065219. The next prime is 6627065257. The reversal of 6627065221 is 1225607266.

It can be written as a sum of positive squares in only one way, i.e., 6619612321 + 7452900 = 81361^2 + 2730^2 .

It is not a de Polignac number, because 6627065221 - 2¹ = 6627065219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6627065261) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67623066 + ... + 67623163.

It is an arithmetic number, because the mean of its divisors is an integer number (1284839185).

Almost surely, 2^6627065221 is an apocalyptic number.

It is an amenable number.

6627065221 is a deficient number, since it is larger than the sum of its proper divisors (1081969889).

6627065221 is a wasteful number, since it uses less digits than its factorization.

6627065221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135246243 (or 135246236 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 6627065221 is about 81406.7885437081. The cubic root of 6627065221 is about 1878.3380155827.

The spelling of 6627065221 in words is "six billion, six hundred twenty-seven million, sixty-five thousand, two hundred twenty-one".