64335440484866 has 16 divisors (see below), whose sum is σ = 98810263126944. Its totient is φ = 31407183724224.

The previous prime is 64335440484841. The next prime is 64335440484983. The reversal of 64335440484866 is 66848404453346.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2124388520 + ... + 2124418803.

It is an arithmetic number, because the mean of its divisors is an integer number (6175641445434).

Almost surely, 2^{64335440484866} is an apocalyptic number.

64335440484866 is a deficient number, since it is larger than the sum of its proper divisors (34474822642078).

64335440484866 is a wasteful number, since it uses less digits than its factorization.

64335440484866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4248807505.

The product of its (nonzero) digits is 637009920, while the sum is 65.

The spelling of 64335440484866 in words is "sixty-four trillion, three hundred thirty-five billion, four hundred forty million, four hundred eighty-four thousand, eight hundred sixty-six".