2180955361 has 8 divisors (see below), whose sum is σ = 2351163584. Its totient is φ = 2011096080.

The previous prime is 2180955349. The next prime is 2180955377. The reversal of 2180955361 is 1635590812.

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 2180955361 - 2¹³ = 2180947169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2180955331) 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, 74175 + ... + 99316.

It is an arithmetic number, because the mean of its divisors is an integer number (293895448).

Almost surely, 2^2180955361 is an apocalyptic number.

It is an amenable number.

2180955361 is a deficient number, since it is larger than the sum of its proper divisors (170208223).

2180955361 is a wasteful number, since it uses less digits than its factorization.

2180955361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174471.

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 2180955361 is about 46700.6997913308. The cubic root of 2180955361 is about 1296.8276417920.

The spelling of 2180955361 in words is "two billion, one hundred eighty million, nine hundred fifty-five thousand, three hundred sixty-one".