2116260311461 has 8 divisors (see below), whose sum is σ = 2138424392664. Its totient is φ = 2094103311360.

The previous prime is 2116260311449. The next prime is 2116260311527. The reversal of 2116260311461 is 1641130626112.

It can be written as a sum of positive squares in 4 ways, for example, as 142710172900 + 1973550138561 = 377770^2 + 1404831^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2116260311461 - 2¹¹ = 2116260309413 is a prime.

It is a super-3 number, since 3×2116260311461³ (a number of 38 digits) contains 333 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 (2116260311411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1168360 + ... + 2365921.

It is an arithmetic number, because the mean of its divisors is an integer number (267303049083).

Almost surely, 2^{2116260311461} is an apocalyptic number.

It is an amenable number.

2116260311461 is a deficient number, since it is larger than the sum of its proper divisors (22164081203).

2116260311461 is an equidigital number, since it uses as much as digits as its factorization.

2116260311461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3540551.

The product of its (nonzero) digits is 10368, while the sum is 34.

Adding to 2116260311461 its reverse (1641130626112), we get a palindrome (3757390937573).

The spelling of 2116260311461 in words is "two trillion, one hundred sixteen billion, two hundred sixty million, three hundred eleven thousand, four hundred sixty-one".