64266646 has 8 divisors (see below), whose sum is σ = 100591344. Its totient is φ = 30736200.

The previous prime is 64266641. The next prime is 64266649. The reversal of 64266646 is 64666246.

64266646 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.

It is a junction number, because it is equal to n+sod(n) for n = 64266599 and 64266608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64266641) 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, 698505 + ... + 698596.

It is an arithmetic number, because the mean of its divisors is an integer number (12573918).

Almost surely, 2^64266646 is an apocalyptic number.

64266646 is a deficient number, since it is larger than the sum of its proper divisors (36324698).

64266646 is a wasteful number, since it uses less digits than its factorization.

64266646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397126.

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

The square root of 64266646 is about 8016.6480526464. The cubic root of 64266646 is about 400.5547427954.

The spelling of 64266646 in words is "sixty-four million, two hundred sixty-six thousand, six hundred forty-six".