2227664641 has 2 divisors, whose sum is σ = 2227664642. Its totient is φ = 2227664640.

The previous prime is 2227664627. The next prime is 2227664651. The reversal of 2227664641 is 1464667222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1929757041 + 297907600 = 43929^2 + 17260^2 .

It is a cyclic number.

It is not a de Polignac number, because 2227664641 - 2¹³ = 2227656449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2227664594 and 2227664603.

It is not a weakly prime, because it can be changed into another prime (2227664651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1113832320 + 1113832321.

It is an arithmetic number, because the mean of its divisors is an integer number (1113832321).

Almost surely, 2^2227664641 is an apocalyptic number.

It is an amenable number.

2227664641 is a deficient number, since it is larger than the sum of its proper divisors (1).

2227664641 is an equidigital number, since it uses as much as digits as its factorization.

2227664641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 40.

The square root of 2227664641 is about 47198.1423469187. The cubic root of 2227664641 is about 1306.0203293436.

The spelling of 2227664641 in words is "two billion, two hundred twenty-seven million, six hundred sixty-four thousand, six hundred forty-one".