64445254446 has 16 divisors (see below), whose sum is σ = 130141874304. Its totient is φ = 21273190584.

The previous prime is 64445254427. The next prime is 64445254483.

64445254446 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 64445254395 and 64445254404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52139556 + ... + 52140791.

It is an arithmetic number, because the mean of its divisors is an integer number (8133867144).

Almost surely, 2^64445254446 is an apocalyptic number.

64445254446 is an abundant number, since it is smaller than the sum of its proper divisors (65696619858).

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

64445254446 is a wasteful number, since it uses less digits than its factorization.

64445254446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104280455.

The product of its digits is 7372800, while the sum is 48.

The spelling of 64445254446 in words is "sixty-four billion, four hundred forty-five million, two hundred fifty-four thousand, four hundred forty-six".