64645416441210 has 96 divisors (see below), whose sum is σ = 175144749808896. Its totient is φ = 15248058883200.

The previous prime is 64645416441187. The next prime is 64645416441227. The reversal of 64645416441210 is 1214461454646.

It is a self number, because there is not a number n which added to its sum of digits gives 64645416441210.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 240523186 + ... + 240791805.

It is an arithmetic number, because the mean of its divisors is an integer number (1824424477176).

Almost surely, 2^{64645416441210} is an apocalyptic number.

64645416441210 is an abundant number, since it is smaller than the sum of its proper divisors (110499333367686).

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

64645416441210 is a wasteful number, since it uses less digits than its factorization.

64645416441210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481315060 (or 481315049 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 48.

Adding to 64645416441210 its reverse (1214461454646), we get a palindrome (65859877895856).

The spelling of 64645416441210 in words is "sixty-four trillion, six hundred forty-five billion, four hundred sixteen million, four hundred forty-one thousand, two hundred ten".