64499569065 has 24 divisors (see below), whose sum is σ = 113694160320. Its totient is φ = 33816721824.

The previous prime is 64499569037. The next prime is 64499569081. The reversal of 64499569065 is 56096599446.

64499569065 is a `hidden beast` number, since 6 + 4 + 4 + 9 + 9 + 569 + 0 + 65 = 666.

It is not a de Polignac number, because 64499569065 - 2¹⁰ = 64499568041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64499568993 and 64499569011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12144157 + ... + 12149466.

It is an arithmetic number, because the mean of its divisors is an integer number (4737256680).

Almost surely, 2^64499569065 is an apocalyptic number.

It is an amenable number.

64499569065 is a deficient number, since it is larger than the sum of its proper divisors (49194591255).

64499569065 is a wasteful number, since it uses less digits than its factorization.

64499569065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24293693 (or 24293690 counting only the distinct ones).

The product of its (nonzero) digits is 62985600, while the sum is 63.

The spelling of 64499569065 in words is "sixty-four billion, four hundred ninety-nine million, five hundred sixty-nine thousand, sixty-five".