64440565225410 has 64 divisors (see below), whose sum is σ = 169119782737920. Its totient is φ = 15584671270080.

The previous prime is 64440565225409. The next prime is 64440565225429. The reversal of 64440565225410 is 1452256504446.

It is a self number, because there is not a number n which added to its sum of digits gives 64440565225410.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 232886122 + ... + 233162661.

It is an arithmetic number, because the mean of its divisors is an integer number (2642496605280).

Almost surely, 2^{64440565225410} is an apocalyptic number.

64440565225410 is an abundant number, since it is smaller than the sum of its proper divisors (104679217512510).

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

64440565225410 is a wasteful number, since it uses less digits than its factorization.

64440565225410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466049223.

The product of its (nonzero) digits is 4608000, while the sum is 48.

The spelling of 64440565225410 in words is "sixty-four trillion, four hundred forty billion, five hundred sixty-five million, two hundred twenty-five thousand, four hundred ten".