5664405636 has 36 divisors (see below), whose sum is σ = 14392564732. Its totient is φ = 1878349824.

The previous prime is 5664405583. The next prime is 5664405641. The reversal of 5664405636 is 6365044665.

5664405636 is a `hidden beast` number, since 5 + 6 + 6 + 4 + 4 + 0 + 5 + 636 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3745440000 + 1918965636 = 61200^2 + 43806^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 5664405591 and 5664405600.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 400681 + ... + 414576.

Almost surely, 2^5664405636 is an apocalyptic number.

It is an amenable number.

5664405636 is an abundant number, since it is smaller than the sum of its proper divisors (8728159096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5664405636 is a wasteful number, since it uses less digits than its factorization.

5664405636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815460 (or 815455 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 45.

The square root of 5664405636 is about 75262.2457544286. The cubic root of 5664405636 is about 1782.5899296511.

The spelling of 5664405636 in words is "five billion, six hundred sixty-four million, four hundred five thousand, six hundred thirty-six".