2188716168 has 32 divisors (see below), whose sum is σ = 5599044000. Its totient is φ = 712604928.

The previous prime is 2188716121. The next prime is 2188716197. The reversal of 2188716168 is 8616178812.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1059393 + ... + 1061456.

It is an arithmetic number, because the mean of its divisors is an integer number (174970125).

Almost surely, 2^2188716168 is an apocalyptic number.

It is an amenable number.

2188716168 is an abundant number, since it is smaller than the sum of its proper divisors (3410327832).

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

2188716168 is a wasteful number, since it uses less digits than its factorization.

2188716168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2120901 (or 2120897 counting only the distinct ones).

The product of its digits is 258048, while the sum is 48.

The square root of 2188716168 is about 46783.7169109082. The cubic root of 2188716168 is about 1298.3640502337.

The spelling of 2188716168 in words is "two billion, one hundred eighty-eight million, seven hundred sixteen thousand, one hundred sixty-eight".