1668610094 has 16 divisors (see below), whose sum is σ = 2540105568. Its totient is φ = 821991072.

The previous prime is 1668610081. The next prime is 1668610117. The reversal of 1668610094 is 4900168661.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20024 + ... + 61140.

It is an arithmetic number, because the mean of its divisors is an integer number (158756598).

Almost surely, 2^1668610094 is an apocalyptic number.

1668610094 is a deficient number, since it is larger than the sum of its proper divisors (871495474).

1668610094 is a wasteful number, since it uses less digits than its factorization.

1668610094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41419.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 1668610094 is about 40848.6241383966. The cubic root of 1668610094 is about 1186.0917600697.

It can be divided in two parts, 16686 and 10094, that multiplied together give a square (168428484 = 12978²).

The spelling of 1668610094 in words is "one billion, six hundred sixty-eight million, six hundred ten thousand, ninety-four".