64116905 has 16 divisors (see below), whose sum is σ = 78537600. Its totient is φ = 50238720.

The previous prime is 64116901. The next prime is 64116929. The reversal of 64116905 is 50961146.

64116905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64116905 - 2² = 64116901 is a prime.

It is a super-2 number, since 2×64116905² = 8221955013558050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64116901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63041 + ... + 64049.

It is an arithmetic number, because the mean of its divisors is an integer number (4908600).

Almost surely, 2^64116905 is an apocalyptic number.

It is an amenable number.

64116905 is a deficient number, since it is larger than the sum of its proper divisors (14420695).

64116905 is a wasteful number, since it uses less digits than its factorization.

64116905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 64116905 is about 8007.3032289280. The cubic root of 64116905 is about 400.2434039396.

The spelling of 64116905 in words is "sixty-four million, one hundred sixteen thousand, nine hundred five".