1668046688 has 48 divisors (see below), whose sum is σ = 4094302464. Its totient is φ = 649887360.

The previous prime is 1668046663. The next prime is 1668046703. The reversal of 1668046688 is 8866408661.

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, 336020 + ... + 340947.

It is an arithmetic number, because the mean of its divisors is an integer number (85297968).

Almost surely, 2^1668046688 is an apocalyptic number.

It is an amenable number.

1668046688 is an abundant number, since it is smaller than the sum of its proper divisors (2426255776).

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

1668046688 is a wasteful number, since it uses less digits than its factorization.

1668046688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676995 (or 676987 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 53.

The square root of 1668046688 is about 40841.7272896238. The cubic root of 1668046688 is about 1185.9582504615.

The spelling of 1668046688 in words is "one billion, six hundred sixty-eight million, forty-six thousand, six hundred eighty-eight".