2158875722241 has 96 divisors (see below), whose sum is σ = 3831740640000. Its totient is φ = 1196948358144.

The previous prime is 2158875722189. The next prime is 2158875722257. The reversal of 2158875722241 is 1422275788512.

It is a happy number.

2158875722241 is a `hidden beast` number, since 2 + 1 + 5 + 8 + 8 + 7 + 572 + 22 + 41 = 666.

It is not a de Polignac number, because 2158875722241 - 2⁶ = 2158875722177 is a prime.

It is a super-3 number, since 3×2158875722241³ (a number of 38 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2158875727241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 17511985 + ... + 17634833.

It is an arithmetic number, because the mean of its divisors is an integer number (39913965000).

Almost surely, 2^{2158875722241} is an apocalyptic number.

2158875722241 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2158875722241 is a deficient number, since it is larger than the sum of its proper divisors (1672864917759).

2158875722241 is a wasteful number, since it uses less digits than its factorization.

2158875722241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123268 (or 123255 counting only the distinct ones).

The product of its digits is 5017600, while the sum is 54.

The spelling of 2158875722241 in words is "two trillion, one hundred fifty-eight billion, eight hundred seventy-five million, seven hundred twenty-two thousand, two hundred forty-one".