2225154664 has 16 divisors (see below), whose sum is σ = 4176113220. Its totient is φ = 1111524480.

The previous prime is 2225154647. The next prime is 2225154671. The reversal of 2225154664 is 4664515222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1773252100 + 451902564 = 42110^2 + 21258^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122589 + ... + 139564.

Almost surely, 2^2225154664 is an apocalyptic number.

It is an amenable number.

2225154664 is a deficient number, since it is larger than the sum of its proper divisors (1950958556).

2225154664 is a wasteful number, since it uses less digits than its factorization.

2225154664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263220 (or 263216 counting only the distinct ones).

The product of its digits is 115200, while the sum is 37.

The square root of 2225154664 is about 47171.5450669151. The cubic root of 2225154664 is about 1305.5296341599.

Adding to 2225154664 its reverse (4664515222), we get a palindrome (6889669886).

The spelling of 2225154664 in words is "two billion, two hundred twenty-five million, one hundred fifty-four thousand, six hundred sixty-four".