64582049656 has 8 divisors (see below), whose sum is σ = 121091343120. Its totient is φ = 32291024824.

The previous prime is 64582049639. The next prime is 64582049657. The reversal of 64582049656 is 65694028546.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×64582049656² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64582049597 and 64582049606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64582049657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4036378096 + ... + 4036378111.

It is an arithmetic number, because the mean of its divisors is an integer number (15136417890).

Almost surely, 2^64582049656 is an apocalyptic number.

It is an amenable number.

64582049656 is a deficient number, since it is larger than the sum of its proper divisors (56509293464).

64582049656 is a wasteful number, since it uses less digits than its factorization.

64582049656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8072756213 (or 8072756209 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 55.

The spelling of 64582049656 in words is "sixty-four billion, five hundred eighty-two million, forty-nine thousand, six hundred fifty-six".