64866358136464 has 20 divisors (see below), whose sum is σ = 125690471723520. Its totient is φ = 32430107369120.

The previous prime is 64866358136387. The next prime is 64866358136477. The reversal of 64866358136464 is 46463185366846.

64866358136464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 64866358136393 and 64866358136402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191806972 + ... + 192144859.

It is an arithmetic number, because the mean of its divisors is an integer number (6284523586176).

Almost surely, 2^{64866358136464} is an apocalyptic number.

It is an amenable number.

64866358136464 is a deficient number, since it is larger than the sum of its proper divisors (60824113587056).

64866358136464 is a wasteful number, since it uses less digits than its factorization.

64866358136464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383962398 (or 383962392 counting only the distinct ones).

The product of its digits is 1433272320, while the sum is 70.

The spelling of 64866358136464 in words is "sixty-four trillion, eight hundred sixty-six billion, three hundred fifty-eight million, one hundred thirty-six thousand, four hundred sixty-four".