64546883682816 has 40 divisors (see below), whose sum is σ = 171956932315344. Its totient is φ = 21515627893760.

The previous prime is 64546883682811. The next prime is 64546883682823. The reversal of 64546883682816 is 61828638864546.

It is not an unprimeable number, because it can be changed into a prime (64546883682811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21011353830 + ... + 21011356901.

Almost surely, 2^{64546883682816} is an apocalyptic number.

It is an amenable number.

64546883682816 is an abundant number, since it is smaller than the sum of its proper divisors (107410048632528).

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

64546883682816 is an equidigital number, since it uses as much as digits as its factorization.

64546883682816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42022710752 (or 42022710736 counting only the distinct ones).

The product of its digits is 2548039680, while the sum is 75.

The spelling of 64546883682816 in words is "sixty-four trillion, five hundred forty-six billion, eight hundred eighty-three million, six hundred eighty-two thousand, eight hundred sixteen".