64552305885 has 64 divisors (see below), whose sum is σ = 110583277056. Its totient is φ = 32075366400.

The previous prime is 64552305863. The next prime is 64552305893. The reversal of 64552305885 is 58850325546.

It is a happy number.

It is not a de Polignac number, because 64552305885 - 2⁶ = 64552305821 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 9516195 + ... + 9522975.

It is an arithmetic number, because the mean of its divisors is an integer number (1727863704).

Almost surely, 2^64552305885 is an apocalyptic number.

It is an amenable number.

64552305885 is a deficient number, since it is larger than the sum of its proper divisors (46030971171).

64552305885 is a wasteful number, since it uses less digits than its factorization.

64552305885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7526.

The product of its (nonzero) digits is 5760000, while the sum is 51.

The spelling of 64552305885 in words is "sixty-four billion, five hundred fifty-two million, three hundred five thousand, eight hundred eighty-five".