73656064553 has 2 divisors, whose sum is σ = 73656064554. Its totient is φ = 73656064552.

The previous prime is 73656064483. The next prime is 73656064567. The reversal of 73656064553 is 35546065637.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54668051344 + 18988013209 = 233812^2 + 137797^2 .

It is an emirp because it is prime and its reverse (35546065637) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73656064553 - 2¹⁰ = 73656063529 is a prime.

It is not a weakly prime, because it can be changed into another prime (73656064453) by changing a digit.

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 as a sum of consecutive naturals, namely, 36828032276 + 36828032277.

It is an arithmetic number, because the mean of its divisors is an integer number (36828032277).

Almost surely, 2^73656064553 is an apocalyptic number.

It is an amenable number.

73656064553 is a deficient number, since it is larger than the sum of its proper divisors (1).

73656064553 is an equidigital number, since it uses as much as digits as its factorization.

73656064553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804000, while the sum is 50.

The spelling of 73656064553 in words is "seventy-three billion, six hundred fifty-six million, sixty-four thousand, five hundred fifty-three".