64004870660 has 24 divisors (see below), whose sum is σ = 136029632256. Its totient is φ = 25293490400.

The previous prime is 64004870651. The next prime is 64004870663. The reversal of 64004870660 is 6607840046.

It is not an unprimeable number, because it can be changed into a prime (64004870663) 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 7 ways as a sum of consecutive naturals, for example, 19276916 + ... + 19280235.

It is an arithmetic number, because the mean of its divisors is an integer number (5667901344).

Almost surely, 2^64004870660 is an apocalyptic number.

It is an amenable number.

64004870660 is an abundant number, since it is smaller than the sum of its proper divisors (72024761596).

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

64004870660 is a wasteful number, since it uses less digits than its factorization.

64004870660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38557243 (or 38557241 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 41.

The spelling of 64004870660 in words is "sixty-four billion, four million, eight hundred seventy thousand, six hundred sixty".