2166896888 has 32 divisors (see below), whose sum is σ = 4379964960. Its totient is φ = 999077760.

The previous prime is 2166896867. The next prime is 2166896917. The reversal of 2166896888 is 8886986612.

It is a self number, because there is not a number n which added to its sum of digits gives 2166896888.

It is a congruent number.

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, 95981 + ... + 116387.

It is an arithmetic number, because the mean of its divisors is an integer number (136873905).

Almost surely, 2^2166896888 is an apocalyptic number.

It is an amenable number.

2166896888 is an abundant number, since it is smaller than the sum of its proper divisors (2213068072).

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

2166896888 is a wasteful number, since it uses less digits than its factorization.

2166896888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21447 (or 21443 counting only the distinct ones).

The product of its digits is 15925248, while the sum is 62.

The square root of 2166896888 is about 46549.9397206914. The cubic root of 2166896888 is about 1294.0351758635.

The spelling of 2166896888 in words is "two billion, one hundred sixty-six million, eight hundred ninety-six thousand, eight hundred eighty-eight".