64246666 has 8 divisors (see below), whose sum is σ = 105130944. Its totient is φ = 29203020.

The previous prime is 64246661. The next prime is 64246667. The reversal of 64246666 is 66664246.

64246666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

64246666 is a modest number, since divided by 6666 gives 6424 as remainder.

It is not an unprimeable number, because it can be changed into a prime (64246661) 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 3 ways as a sum of consecutive naturals, for example, 1460130 + ... + 1460173.

It is an arithmetic number, because the mean of its divisors is an integer number (13141368).

Almost surely, 2^64246666 is an apocalyptic number.

64246666 is a deficient number, since it is larger than the sum of its proper divisors (40884278).

64246666 is a wasteful number, since it uses less digits than its factorization.

64246666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2920316.

The product of its digits is 248832, while the sum is 40.

The square root of 64246666 is about 8015.4017990367. The cubic root of 64246666 is about 400.5132287091.

The spelling of 64246666 in words is "sixty-four million, two hundred forty-six thousand, six hundred sixty-six".