4120666871 has 4 divisors (see below), whose sum is σ = 4121091000. Its totient is φ = 4120242744.

The previous prime is 4120666859. The next prime is 4120666943. The reversal of 4120666871 is 1786660214.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1786660214 = 2 ⋅893330107.

It is a cyclic number.

It is not a de Polignac number, because 4120666871 - 2³⁰ = 3046925047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4120666841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197141 + ... + 217038.

It is an arithmetic number, because the mean of its divisors is an integer number (1030272750).

Almost surely, 2^4120666871 is an apocalyptic number.

4120666871 is a deficient number, since it is larger than the sum of its proper divisors (424129).

4120666871 is an equidigital number, since it uses as much as digits as its factorization.

4120666871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424128.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 4120666871 is about 64192.4206663061. The cubic root of 4120666871 is about 1603.2054062299.

The spelling of 4120666871 in words is "four billion, one hundred twenty million, six hundred sixty-six thousand, eight hundred seventy-one".