73645453565105 has 16 divisors (see below), whose sum is σ = 88610440955904. Its totient is φ = 58759257668160.

The previous prime is 73645453565069. The next prime is 73645453565111. The reversal of 73645453565105 is 50156535454637.

It is not a de Polignac number, because 73645453565105 - 2⁸ = 73645453564849 is a prime.

It is a super-2 number, since 2×73645453565105² (a number of 29 digits) contains 22 as substring.

It is a Duffinian 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, 6253694 + ... + 13652823.

It is an arithmetic number, because the mean of its divisors is an integer number (5538152559744).

Almost surely, 2^{73645453565105} is an apocalyptic number.

It is an amenable number.

73645453565105 is a deficient number, since it is larger than the sum of its proper divisors (14964987390799).

73645453565105 is a wasteful number, since it uses less digits than its factorization.

73645453565105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19908496.

The product of its (nonzero) digits is 113400000, while the sum is 59.

The spelling of 73645453565105 in words is "seventy-three trillion, six hundred forty-five billion, four hundred fifty-three million, five hundred sixty-five thousand, one hundred five".