3862166121 has 24 divisors (see below), whose sum is σ = 6098942304. Its totient is φ = 2335666560.

The previous prime is 3862166107. The next prime is 3862166159. The reversal of 3862166121 is 1216612683.

It is a happy number.

3862166121 is a `hidden beast` number, since 3 + 8 + 621 + 6 + 6 + 1 + 21 = 666.

It is not a de Polignac number, because 3862166121 - 2¹⁷ = 3862035049 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3862166101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4465 + ... + 88001.

It is an arithmetic number, because the mean of its divisors is an integer number (254122596).

Almost surely, 2^3862166121 is an apocalyptic number.

It is an amenable number.

3862166121 is a deficient number, since it is larger than the sum of its proper divisors (2236776183).

3862166121 is a wasteful number, since it uses less digits than its factorization.

3862166121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84021 (or 84018 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 3862166121 is about 62146.3282986212. The cubic root of 3862166121 is about 1568.9543825477.

The spelling of 3862166121 in words is "three billion, eight hundred sixty-two million, one hundred sixty-six thousand, one hundred twenty-one".