1668687088 has 40 divisors (see below), whose sum is σ = 3481317360. Its totient is φ = 771947520.

The previous prime is 1668687043. The next prime is 1668687091. The reversal of 1668687088 is 8807868661.

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, 35943 + ... + 68038.

It is an arithmetic number, because the mean of its divisors is an integer number (87032934).

Almost surely, 2^1668687088 is an apocalyptic number.

It is an amenable number.

1668687088 is an abundant number, since it is smaller than the sum of its proper divisors (1812630272).

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

1668687088 is a wasteful number, since it uses less digits than its factorization.

1668687088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104065 (or 104059 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 58.

The square root of 1668687088 is about 40849.5665582880. The cubic root of 1668687088 is about 1186.1100029064.

The spelling of 1668687088 in words is "one billion, six hundred sixty-eight million, six hundred eighty-seven thousand, eighty-eight".