2521442166 has 8 divisors (see below), whose sum is σ = 5042884344. Its totient is φ = 840480720.

The previous prime is 2521442129. The next prime is 2521442171. The reversal of 2521442166 is 6612441252.

2521442166 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

2521442166 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210120175 + ... + 210120186.

It is an arithmetic number, because the mean of its divisors is an integer number (630360543).

Almost surely, 2^2521442166 is an apocalyptic number.

2521442166 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2521442166 is a wasteful number, since it uses less digits than its factorization.

2521442166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420240366.

The product of its digits is 23040, while the sum is 33.

The square root of 2521442166 is about 50213.9638546889. The cubic root of 2521442166 is about 1361.0779670801.

The spelling of 2521442166 in words is "two billion, five hundred twenty-one million, four hundred forty-two thousand, one hundred sixty-six".