64666113 has 16 divisors (see below), whose sum is σ = 91607616. Its totient is φ = 40435200.

The previous prime is 64666099. The next prime is 64666127. The reversal of 64666113 is 31166646.

64666113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (64666099) and next prime (64666127).

It is not a de Polignac number, because 64666113 - 2⁴ = 64666097 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64666153) 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, 13938 + ... + 17988.

It is an arithmetic number, because the mean of its divisors is an integer number (5725476).

Almost surely, 2^64666113 is an apocalyptic number.

It is an amenable number.

64666113 is a deficient number, since it is larger than the sum of its proper divisors (26941503).

64666113 is a wasteful number, since it uses less digits than its factorization.

64666113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4384.

The product of its digits is 15552, while the sum is 33.

The square root of 64666113 is about 8041.5242958036. The cubic root of 64666113 is about 401.3829485397.

The spelling of 64666113 in words is "sixty-four million, six hundred sixty-six thousand, one hundred thirteen".