9221664613 has 6 divisors (see below), whose sum is σ = 10727242566. Its totient is φ = 7904283912.

The previous prime is 9221664587. The next prime is 9221664653. The reversal of 9221664613 is 3164661229.

It can be written as a sum of positive squares in only one way, i.e., 9051048769 + 170615844 = 95137^2 + 13062^2 .

It is not a de Polignac number, because 9221664613 - 2²⁹ = 8684793701 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 (9221664653) 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 5 ways as a sum of consecutive naturals, for example, 94098570 + ... + 94098667.

It is an arithmetic number, because the mean of its divisors is an integer number (1787873761).

Almost surely, 2^9221664613 is an apocalyptic number.

It is an amenable number.

9221664613 is a deficient number, since it is larger than the sum of its proper divisors (1505577953).

9221664613 is a wasteful number, since it uses less digits than its factorization.

9221664613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188197251 (or 188197244 counting only the distinct ones).

The product of its digits is 93312, while the sum is 40.

The square root of 9221664613 is about 96029.4986605678. The cubic root of 9221664613 is about 2097.0225842681.

The spelling of 9221664613 in words is "nine billion, two hundred twenty-one million, six hundred sixty-four thousand, six hundred thirteen".