4172065636 has 6 divisors (see below), whose sum is σ = 7301114870. Its totient is φ = 2086032816.

The previous prime is 4172065631. The next prime is 4172065637. The reversal of 4172065636 is 6365602714.

It can be written as a sum of positive squares in only one way, i.e., 2429504100 + 1742561536 = 49290^2 + 41744^2 .

It is a super-2 number, since 2×4172065636² = 34812263342184168992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4172065631) 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, 521508201 + ... + 521508208.

Almost surely, 2^4172065636 is an apocalyptic number.

It is an amenable number.

4172065636 is a deficient number, since it is larger than the sum of its proper divisors (3129049234).

4172065636 is a wasteful number, since it uses less digits than its factorization.

4172065636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043016413 (or 1043016411 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 4172065636 is about 64591.5291350189. The cubic root of 4172065636 is about 1609.8436940447.

The spelling of 4172065636 in words is "four billion, one hundred seventy-two million, sixty-five thousand, six hundred thirty-six".