2142887166 has 48 divisors (see below), whose sum is σ = 5373388800. Its totient is φ = 604500624.

The previous prime is 2142887147. The next prime is 2142887221. The reversal of 2142887166 is 6617882412.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97686 + ... + 117593.

It is an arithmetic number, because the mean of its divisors is an integer number (111945600).

Almost surely, 2^2142887166 is an apocalyptic number.

2142887166 is an abundant number, since it is smaller than the sum of its proper divisors (3230501634).

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

2142887166 is a wasteful number, since it uses less digits than its factorization.

2142887166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215373 (or 215370 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 2142887166 is about 46291.3292744980. The cubic root of 2142887166 is about 1289.2380104184.

The spelling of 2142887166 in words is "two billion, one hundred forty-two million, eight hundred eighty-seven thousand, one hundred sixty-six".