9225511664 has 20 divisors (see below), whose sum is σ = 18126183600. Its totient is φ = 4547786880.

The previous prime is 9225511663. The next prime is 9225511667. The reversal of 9225511664 is 4661155229.

It is a super-2 number, since 2×9225511664² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9225511663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4059389 + ... + 4061660.

It is an arithmetic number, because the mean of its divisors is an integer number (906309180).

Almost surely, 2^9225511664 is an apocalyptic number.

It is an amenable number.

9225511664 is a deficient number, since it is larger than the sum of its proper divisors (8900671936).

9225511664 is a wasteful number, since it uses less digits than its factorization.

9225511664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8121128 (or 8121122 counting only the distinct ones).

The product of its digits is 129600, while the sum is 41.

The square root of 9225511664 is about 96049.5271409495. The cubic root of 9225511664 is about 2097.3141524247.

The spelling of 9225511664 in words is "nine billion, two hundred twenty-five million, five hundred eleven thousand, six hundred sixty-four".