2166084402888 has 32 divisors (see below), whose sum is σ = 6188812580160. Its totient is φ = 618881257920.

The previous prime is 2166084402869. The next prime is 2166084402901. The reversal of 2166084402888 is 8882044806612.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6446679603 + ... + 6446679938.

It is an arithmetic number, because the mean of its divisors is an integer number (193400393130).

Almost surely, 2^{2166084402888} is an apocalyptic number.

2166084402888 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2166084402888 is an abundant number, since it is smaller than the sum of its proper divisors (4022728177272).

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

2166084402888 is a wasteful number, since it uses less digits than its factorization.

2166084402888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12893359557 (or 12893359553 counting only the distinct ones).

The product of its (nonzero) digits is 9437184, while the sum is 57.

The spelling of 2166084402888 in words is "two trillion, one hundred sixty-six billion, eighty-four million, four hundred two thousand, eight hundred eighty-eight".