2185966341 has 24 divisors (see below), whose sum is σ = 3402669816. Its totient is φ = 1344309120.

The previous prime is 2185966303. The next prime is 2185966351. The reversal of 2185966341 is 1436695812.

2185966341 is a `hidden beast` number, since 2 + 1 + 8 + 5 + 9 + 6 + 634 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 7784100 + 2178182241 = 2790^2 + 46671^2 .

It is not a de Polignac number, because 2185966341 - 2⁹ = 2185965829 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2185966351) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 197371 + ... + 208151.

It is an arithmetic number, because the mean of its divisors is an integer number (141777909).

Almost surely, 2^2185966341 is an apocalyptic number.

It is an amenable number.

2185966341 is a deficient number, since it is larger than the sum of its proper divisors (1216703475).

2185966341 is a wasteful number, since it uses less digits than its factorization.

2185966341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12533 (or 12530 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 2185966341 is about 46754.3189555789. The cubic root of 2185966341 is about 1297.8200825251.

The spelling of 2185966341 in words is "two billion, one hundred eighty-five million, nine hundred sixty-six thousand, three hundred forty-one".