116043161261 has 4 divisors (see below), whose sum is σ = 116048502012. Its totient is φ = 116037820512.

The previous prime is 116043161249. The next prime is 116043161317. The reversal of 116043161261 is 162161340611.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 60167184100 + 55875977161 = 245290^2 + 236381^2 .

It is a cyclic number.

It is not a de Polignac number, because 116043161261 - 2⁶ = 116043161197 is a prime.

It is a super-2 number, since 2×116043161261² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116043161231) 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 in 3 ways as a sum of consecutive naturals, for example, 2637650 + ... + 2681283.

It is an arithmetic number, because the mean of its divisors is an integer number (29012125503).

Almost surely, 2^116043161261 is an apocalyptic number.

It is an amenable number.

116043161261 is a deficient number, since it is larger than the sum of its proper divisors (5340751).

116043161261 is an equidigital number, since it uses as much as digits as its factorization.

116043161261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5340750.

The product of its (nonzero) digits is 5184, while the sum is 32.

The spelling of 116043161261 in words is "one hundred sixteen billion, forty-three million, one hundred sixty-one thousand, two hundred sixty-one".