64445302186616 has 16 divisors (see below), whose sum is σ = 130129937107800. Its totient is φ = 29743985624544.

The previous prime is 64445302186597. The next prime is 64445302186619. The reversal of 64445302186616 is 61668120354446.

64445302186616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64445302186619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 309833183486 + ... + 309833183693.

Almost surely, 2^{64445302186616} is an apocalyptic number.

It is an amenable number.

64445302186616 is an abundant number, since it is smaller than the sum of its proper divisors (65684634921184).

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

64445302186616 is a wasteful number, since it uses less digits than its factorization.

64445302186616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619666367198 (or 619666367194 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 56.

The spelling of 64445302186616 in words is "sixty-four trillion, four hundred forty-five billion, three hundred two million, one hundred eighty-six thousand, six hundred sixteen".