2116358662441 has 9 divisors (see below), whose sum is σ = 2148516510231. Its totient is φ = 2084675204832.

The previous prime is 2116358662423. The next prime is 2116358662501. The reversal of 2116358662441 is 1442668536112.

The square root of 2116358662441 is 1454771.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 548614269225 + 1567744393216 = 740685^2 + 1252096^2 .

It is not a de Polignac number, because 2116358662441 - 2¹¹ = 2116358660393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2116358662421) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 97458801 + ... + 97480513.

Almost surely, 2^{2116358662441} is an apocalyptic number.

2116358662441 is the 1454771-st square number.

2116358662441 is the 727386-th centered octagonal number.

It is an amenable number.

2116358662441 is a deficient number, since it is larger than the sum of its proper divisors (32157847790).

2116358662441 is an frugal number, since it uses more digits than its factorization.

2116358662441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43560 (or 21780 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 49.

Multiplying 2116358662441 by its sum of digits (49), we get a square (103701574459609 = 10183397²).

The spelling of 2116358662441 in words is "two trillion, one hundred sixteen billion, three hundred fifty-eight million, six hundred sixty-two thousand, four hundred forty-one".