56000106160561 has 2 divisors, whose sum is σ = 56000106160562. Its totient is φ = 56000106160560.

The previous prime is 56000106160553. The next prime is 56000106160571. The reversal of 56000106160561 is 16506160100065.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40199163158961 + 15800943001600 = 6340281^2 + 3975040^2 .

It is a cyclic number.

It is not a de Polignac number, because 56000106160561 - 2³ = 56000106160553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56000106160561.

It is not a weakly prime, because it can be changed into another prime (56000106160511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28000053080280 + 28000053080281.

It is an arithmetic number, because the mean of its divisors is an integer number (28000053080281).

Almost surely, 2^{56000106160561} is an apocalyptic number.

It is an amenable number.

56000106160561 is a deficient number, since it is larger than the sum of its proper divisors (1).

56000106160561 is an equidigital number, since it uses as much as digits as its factorization.

56000106160561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 37.

The spelling of 56000106160561 in words is "fifty-six trillion, one hundred six million, one hundred sixty thousand, five hundred sixty-one".