1601050110091 has 2 divisors, whose sum is σ = 1601050110092. Its totient is φ = 1601050110090.

The previous prime is 1601050110071. The next prime is 1601050110151. The reversal of 1601050110091 is 1900110501061.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1601050110091 - 2¹⁵ = 1601050077323 is a prime.

It is a super-2 number, since 2×1601050110091² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1601050110071) 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, 800525055045 + 800525055046.

It is an arithmetic number, because the mean of its divisors is an integer number (800525055046).

Almost surely, 2^{1601050110091} is an apocalyptic number.

1601050110091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1601050110091 is an equidigital number, since it uses as much as digits as its factorization.

1601050110091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 25.

The spelling of 1601050110091 in words is "one trillion, six hundred one billion, fifty million, one hundred ten thousand, ninety-one".