2110863200161 has 9 divisors (see below), whose sum is σ = 2120080972881. Its totient is φ = 2101685350884.

The previous prime is 2110863200153. The next prime is 2110863200209. The reversal of 2110863200161 is 1610023680112.

The square root of 2110863200161 is 1452881.

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

It is not a de Polignac number, because 2110863200161 - 2³ = 2110863200153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2110863206161) 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, 347235520 + ... + 347241598.

Almost surely, 2^{2110863200161} is an apocalyptic number.

2110863200161 is the 1452881-st square number.

2110863200161 is the 726441-st centered octagonal number.

It is an amenable number.

2110863200161 is a deficient number, since it is larger than the sum of its proper divisors (9217772720).

2110863200161 is an frugal number, since it uses more digits than its factorization.

2110863200161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12636 (or 6318 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

Adding to 2110863200161 its reverse (1610023680112), we get a palindrome (3720886880273).

The spelling of 2110863200161 in words is "two trillion, one hundred ten billion, eight hundred sixty-three million, two hundred thousand, one hundred sixty-one".