63664011 has 12 divisors (see below), whose sum is σ = 92063088. Its totient is φ = 42394704.

The previous prime is 63664001. The next prime is 63664039. The reversal of 63664011 is 11046636.

63664011 is a `hidden beast` number, since 6 + 3 + 6 + 640 + 11 = 666.

It is not a de Polignac number, because 63664011 - 2⁵ = 63663979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63664001) 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 in 11 ways as a sum of consecutive naturals, for example, 5626 + ... + 12608.

It is an arithmetic number, because the mean of its divisors is an integer number (7671924).

Almost surely, 2^63664011 is an apocalyptic number.

63664011 is a deficient number, since it is larger than the sum of its proper divisors (28399077).

63664011 is a wasteful number, since it uses less digits than its factorization.

63664011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8002 (or 7999 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 63664011 is about 7978.9730542220. The cubic root of 63664011 is about 399.2987944118.

The spelling of 63664011 in words is "sixty-three million, six hundred sixty-four thousand, eleven".