56442543277161 has 4 divisors (see below), whose sum is σ = 75256724369552. Its totient is φ = 37628362184772.

The previous prime is 56442543277117. The next prime is 56442543277189. The reversal of 56442543277161 is 16177234524465.

56442543277161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 56442543277161 - 2¹⁰ = 56442543276137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56442543277111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9407090546191 + ... + 9407090546196.

It is an arithmetic number, because the mean of its divisors is an integer number (18814181092388).

Almost surely, 2^{56442543277161} is an apocalyptic number.

It is an amenable number.

56442543277161 is a deficient number, since it is larger than the sum of its proper divisors (18814181092391).

56442543277161 is a wasteful number, since it uses less digits than its factorization.

56442543277161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18814181092390.

The product of its digits is 33868800, while the sum is 57.

The spelling of 56442543277161 in words is "fifty-six trillion, four hundred forty-two billion, five hundred forty-three million, two hundred seventy-seven thousand, one hundred sixty-one".