561060116623 has 2 divisors, whose sum is σ = 561060116624. Its totient is φ = 561060116622.

The previous prime is 561060116557. The next prime is 561060116633. The reversal of 561060116623 is 326611060165.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 561060116623 - 2²¹ = 561058019471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (561060116633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280530058311 + 280530058312.

It is an arithmetic number, because the mean of its divisors is an integer number (280530058312).

Almost surely, 2^561060116623 is an apocalyptic number.

561060116623 is a deficient number, since it is larger than the sum of its proper divisors (1).

561060116623 is an equidigital number, since it uses as much as digits as its factorization.

561060116623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 37.

Adding to 561060116623 its reverse (326611060165), we get a palindrome (887671176788).

The spelling of 561060116623 in words is "five hundred sixty-one billion, sixty million, one hundred sixteen thousand, six hundred twenty-three".