64546966964547 has 12 divisors (see below), whose sum is σ = 93264907130200. Its totient is φ = 43017280867008.

The previous prime is 64546966964497. The next prime is 64546966964561. The reversal of 64546966964547 is 74546966964546.

64546966964547 is a `hidden beast` number, since 6 + 4 + 5 + 4 + 6 + 9 + 6 + 6 + 9 + 64 + 547 = 666.

It is not a de Polignac number, because 64546966964547 - 2¹⁶ = 64546966899011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64546966964567) 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 11 ways as a sum of consecutive naturals, for example, 1169174422 + ... + 1169229627.

Almost surely, 2^{64546966964547} is an apocalyptic number.

64546966964547 is a deficient number, since it is larger than the sum of its proper divisors (28717940165653).

64546966964547 is a wasteful number, since it uses less digits than its factorization.

64546966964547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2338407122 (or 2338407119 counting only the distinct ones).

The product of its digits is 28217548800, while the sum is 81.

Subtracting 64546966964547 from its reverse (74546966964546), we obtain a palindrome (9999999999999).

The spelling of 64546966964547 in words is "sixty-four trillion, five hundred forty-six billion, nine hundred sixty-six million, nine hundred sixty-four thousand, five hundred forty-seven".