100561085610571 has 2 divisors, whose sum is σ = 100561085610572. Its totient is φ = 100561085610570.

The previous prime is 100561085610541. The next prime is 100561085610659. The reversal of 100561085610571 is 175016580165001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100561085610571 - 2¹³ = 100561085602379 is a prime.

It is a super-2 number, since 2×100561085610571² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100561085610541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50280542805285 + 50280542805286.

It is an arithmetic number, because the mean of its divisors is an integer number (50280542805286).

Almost surely, 2^{100561085610571} is an apocalyptic number.

100561085610571 is a deficient number, since it is larger than the sum of its proper divisors (1).

100561085610571 is an equidigital number, since it uses as much as digits as its factorization.

100561085610571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252000, while the sum is 46.

The spelling of 100561085610571 in words is "one hundred trillion, five hundred sixty-one billion, eighty-five million, six hundred ten thousand, five hundred seventy-one".