64466340618 has 16 divisors (see below), whose sum is σ = 129032567136. Its totient is φ = 21472132560.

The previous prime is 64466340613. The next prime is 64466340641. The reversal of 64466340618 is 81604366446.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64466340613) 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 7 ways as a sum of consecutive naturals, for example, 4153521 + ... + 4169012.

It is an arithmetic number, because the mean of its divisors is an integer number (8064535446).

Almost surely, 2^64466340618 is an apocalyptic number.

64466340618 is an abundant number, since it is smaller than the sum of its proper divisors (64566226518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64466340618 is a wasteful number, since it uses less digits than its factorization.

64466340618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8323829.

The product of its (nonzero) digits is 1990656, while the sum is 48.

The spelling of 64466340618 in words is "sixty-four billion, four hundred sixty-six million, three hundred forty thousand, six hundred eighteen".