75560566506557 has 16 divisors (see below), whose sum is σ = 83249795265984. Its totient is φ = 68008083360000.

The previous prime is 75560566506521. The next prime is 75560566506577.

It is a happy number.

75560566506557 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 75560566506557 - 2¹⁴ = 75560566490173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75560566506577) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21962213 + ... + 25168629.

It is an arithmetic number, because the mean of its divisors is an integer number (5203112204124).

Almost surely, 2^{75560566506557} is an apocalyptic number.

It is an amenable number.

75560566506557 is a deficient number, since it is larger than the sum of its proper divisors (7689228759427).

75560566506557 is a wasteful number, since it uses less digits than its factorization.

75560566506557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3227740.

The product of its (nonzero) digits is 992250000, while the sum is 68.

The spelling of 75560566506557 in words is "seventy-five trillion, five hundred sixty billion, five hundred sixty-six million, five hundred six thousand, five hundred fifty-seven".