1668310596 has 18 divisors (see below), whose sum is σ = 4217118542. Its totient is φ = 556103520.

The previous prime is 1668310583. The next prime is 1668310597. The reversal of 1668310596 is 6950138661.

It can be written as a sum of positive squares in only one way, i.e., 1655350596 + 12960000 = 40686^2 + 3600^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (1668310597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23170945 + ... + 23171016.

Almost surely, 2^1668310596 is an apocalyptic number.

It is an amenable number.

1668310596 is an abundant number, since it is smaller than the sum of its proper divisors (2548807946).

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

1668310596 is a wasteful number, since it uses less digits than its factorization.

1668310596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46341971 (or 46341966 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 1668310596 is about 40844.9580242164. The cubic root of 1668310596 is about 1186.0207921492.

The spelling of 1668310596 in words is "one billion, six hundred sixty-eight million, three hundred ten thousand, five hundred ninety-six".