1601161116011 has 8 divisors (see below), whose sum is σ = 1652978725248. Its totient is φ = 1549353960000.

The previous prime is 1601161115999. The next prime is 1601161116043. The reversal of 1601161116011 is 1106111611061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1601161116011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1601161116211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2301410 + ... + 2915271.

It is an arithmetic number, because the mean of its divisors is an integer number (206622340656).

Almost surely, 2^{1601161116011} is an apocalyptic number.

1601161116011 is a deficient number, since it is larger than the sum of its proper divisors (51817609237).

1601161116011 is an equidigital number, since it uses as much as digits as its factorization.

1601161116011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5226613.

The product of its (nonzero) digits is 216, while the sum is 26.

Adding to 1601161116011 its reverse (1106111611061), we get a palindrome (2707272727072).

The spelling of 1601161116011 in words is "one trillion, six hundred one billion, one hundred sixty-one million, one hundred sixteen thousand, eleven".