2161843376201 has 8 divisors (see below), whose sum is σ = 2184190372608. Its totient is φ = 2139602040000.

The previous prime is 2161843376197. The next prime is 2161843376207. The reversal of 2161843376201 is 1026733481612.

It is a happy number.

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 2161843376201 - 2² = 2161843376197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2161843376207) 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, 26373920 + ... + 26455761.

It is an arithmetic number, because the mean of its divisors is an integer number (273023796576).

Almost surely, 2^{2161843376201} is an apocalyptic number.

It is an amenable number.

2161843376201 is a deficient number, since it is larger than the sum of its proper divisors (22346996407).

2161843376201 is a wasteful number, since it uses less digits than its factorization.

2161843376201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52830103.

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 2161843376201 in words is "two trillion, one hundred sixty-one billion, eight hundred forty-three million, three hundred seventy-six thousand, two hundred one".