2160844140361 has 27 divisors (see below), whose sum is σ = 2258644736959. Its totient is φ = 2067193120832.

The previous prime is 2160844140353. The next prime is 2160844140407. The reversal of 2160844140361 is 1630414480612.

The square root of 2160844140361 is 1469981.

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

It can be written as a sum of positive squares in 13 ways, for example, as 154031915961 + 2006812224400 = 392469^2 + 1416620^2 .

It is not a de Polignac number, because 2160844140361 - 2³ = 2160844140353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2160844146361) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 7374894531 + ... + 7374894823.

Almost surely, 2^{2160844140361} is an apocalyptic number.

2160844140361 is the 1469981-st square number.

2160844140361 is the 734991-st centered octagonal number.

It is an amenable number.

2160844140361 is a deficient number, since it is larger than the sum of its proper divisors (97800596598).

2160844140361 is an frugal number, since it uses more digits than its factorization.

2160844140361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990 (or 495 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The spelling of 2160844140361 in words is "two trillion, one hundred sixty billion, eight hundred forty-four million, one hundred forty thousand, three hundred sixty-one".