73405314256565 has 16 divisors (see below), whose sum is σ = 94063317050880. Its totient is φ = 54870268272960.

The previous prime is 73405314256537. The next prime is 73405314256579. The reversal of 73405314256565 is 56565241350437.

It is not a de Polignac number, because 73405314256565 - 2³⁰ = 73404240514741 is a prime.

It is a super-2 number, since 2×73405314256565² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 73405314256565.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8165213999 + ... + 8165222988.

It is an arithmetic number, because the mean of its divisors is an integer number (5878957315680).

Almost surely, 2^{73405314256565} is an apocalyptic number.

It is an amenable number.

73405314256565 is a deficient number, since it is larger than the sum of its proper divisors (20658002794315).

73405314256565 is a wasteful number, since it uses less digits than its factorization.

73405314256565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16330437052.

The product of its (nonzero) digits is 45360000, while the sum is 56.

The spelling of 73405314256565 in words is "seventy-three trillion, four hundred five billion, three hundred fourteen million, two hundred fifty-six thousand, five hundred sixty-five".