64383216120818 has 32 divisors (see below), whose sum is σ = 111725761504896. Its totient is φ = 27254320823808.

The previous prime is 64383216120803. The next prime is 64383216120841. The reversal of 64383216120818 is 81802161238346.

It is a self number, because there is not a number n which added to its sum of digits gives 64383216120818.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 894521 + ... + 11382732.

It is an arithmetic number, because the mean of its divisors is an integer number (3491430047028).

Almost surely, 2^{64383216120818} is an apocalyptic number.

64383216120818 is a deficient number, since it is larger than the sum of its proper divisors (47342545384078).

64383216120818 is a wasteful number, since it uses less digits than its factorization.

64383216120818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12281858.

The product of its (nonzero) digits is 2654208, while the sum is 53.

The spelling of 64383216120818 in words is "sixty-four trillion, three hundred eighty-three billion, two hundred sixteen million, one hundred twenty thousand, eight hundred eighteen".