2197825684164 has 36 divisors (see below), whose sum is σ = 6060670827120. Its totient is φ = 666007782960.

The previous prime is 2197825684163. The next prime is 2197825684177. The reversal of 2197825684164 is 4614865287912.

It is a happy number.

2197825684164 is a `hidden beast` number, since 2 + 1 + 9 + 7 + 8 + 2 + 568 + 4 + 1 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (2197825684163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2775032034 + ... + 2775032825.

It is an arithmetic number, because the mean of its divisors is an integer number (168351967420).

Almost surely, 2^{2197825684164} is an apocalyptic number.

It is an amenable number.

2197825684164 is an abundant number, since it is smaller than the sum of its proper divisors (3862845142956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2197825684164 is a wasteful number, since it uses less digits than its factorization.

2197825684164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5550064880 (or 5550064875 counting only the distinct ones).

The product of its digits is 46448640, while the sum is 63.

The spelling of 2197825684164 in words is "two trillion, one hundred ninety-seven billion, eight hundred twenty-five million, six hundred eighty-four thousand, one hundred sixty-four".