5645523266 has 4 divisors (see below), whose sum is σ = 8468284902. Its totient is φ = 2822761632.

The previous prime is 5645523239. The next prime is 5645523269. The reversal of 5645523266 is 6623255465.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4723125625 + 922397641 = 68725^2 + 30371^2 .

It is not an unprimeable number, because it can be changed into a prime (5645523269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1411380815 + ... + 1411380818.

Almost surely, 2^5645523266 is an apocalyptic number.

5645523266 is a deficient number, since it is larger than the sum of its proper divisors (2822761636).

5645523266 is a wasteful number, since it uses less digits than its factorization.

5645523266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2822761635.

The product of its digits is 1296000, while the sum is 44.

The square root of 5645523266 is about 75136.6971991716. The cubic root of 5645523266 is about 1780.6069623472.

The spelling of 5645523266 in words is "five billion, six hundred forty-five million, five hundred twenty-three thousand, two hundred sixty-six".