1668362064 has 40 divisors (see below), whose sum is σ = 4335764160. Its totient is φ = 552787968.

The previous prime is 1668362039. The next prime is 1668362077. The reversal of 1668362064 is 4602638661.

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, 96049 + ... + 112080.

It is an arithmetic number, because the mean of its divisors is an integer number (108394104).

Almost surely, 2^1668362064 is an apocalyptic number.

It is an amenable number.

1668362064 is an abundant number, since it is smaller than the sum of its proper divisors (2667402096).

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

1668362064 is a wasteful number, since it uses less digits than its factorization.

1668362064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208307 (or 208301 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 42.

The square root of 1668362064 is about 40845.5880604013. The cubic root of 1668362064 is about 1186.0329884174.

The spelling of 1668362064 in words is "one billion, six hundred sixty-eight million, three hundred sixty-two thousand, sixty-four".