100161000064091 has 2 divisors, whose sum is σ = 100161000064092. Its totient is φ = 100161000064090.

The previous prime is 100161000064087. The next prime is 100161000064129. The reversal of 100161000064091 is 190460000161001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100161000064091 - 2² = 100161000064087 is a prime.

It is a super-2 number, since 2×100161000064091² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100161000064001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50080500032045 + 50080500032046.

It is an arithmetic number, because the mean of its divisors is an integer number (50080500032046).

Almost surely, 2^{100161000064091} is an apocalyptic number.

100161000064091 is a deficient number, since it is larger than the sum of its proper divisors (1).

100161000064091 is an equidigital number, since it uses as much as digits as its factorization.

100161000064091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 29.

The spelling of 100161000064091 in words is "one hundred trillion, one hundred sixty-one billion, sixty-four thousand, ninety-one".