1668338702 has 4 divisors (see below), whose sum is σ = 2502508056. Its totient is φ = 834169350.

The previous prime is 1668338657. The next prime is 1668338713. The reversal of 1668338702 is 2078338661.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 417084674 + ... + 417084677.

It is an arithmetic number, because the mean of its divisors is an integer number (625627014).

Almost surely, 2^1668338702 is an apocalyptic number.

1668338702 is a deficient number, since it is larger than the sum of its proper divisors (834169354).

1668338702 is an equidigital number, since it uses as much as digits as its factorization.

1668338702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834169353.

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 1668338702 is about 40845.3020799210. The cubic root of 1668338702 is about 1186.0274524025.

The spelling of 1668338702 in words is "one billion, six hundred sixty-eight million, three hundred thirty-eight thousand, seven hundred two".