73164443644 has 12 divisors (see below), whose sum is σ = 130207908600. Its totient is φ = 35962184048.

The previous prime is 73164443609. The next prime is 73164443659. The reversal of 73164443644 is 44634446137.

It is a junction number, because it is equal to n+sod(n) for n = 73164443594 and 73164443603.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 155009179 + ... + 155009650.

It is an arithmetic number, because the mean of its divisors is an integer number (10850659050).

Almost surely, 2^73164443644 is an apocalyptic number.

It is an amenable number.

73164443644 is a deficient number, since it is larger than the sum of its proper divisors (57043464956).

73164443644 is a wasteful number, since it uses less digits than its factorization.

73164443644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310018892 (or 310018890 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 46.

The spelling of 73164443644 in words is "seventy-three billion, one hundred sixty-four million, four hundred forty-three thousand, six hundred forty-four".