3165781325668 has 48 divisors (see below), whose sum is σ = 6281126591040. Its totient is φ = 1384044969600.

The previous prime is 3165781325647. The next prime is 3165781325683. The reversal of 3165781325668 is 8665231875613.

3165781325668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (61) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7390398 + ... + 7807018.

It is an arithmetic number, because the mean of its divisors is an integer number (130856803980).

Almost surely, 2^{3165781325668} is an apocalyptic number.

3165781325668 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

3165781325668 is a deficient number, since it is larger than the sum of its proper divisors (3115345265372).

3165781325668 is a wasteful number, since it uses less digits than its factorization.

3165781325668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424348 (or 424346 counting only the distinct ones).

The product of its digits is 43545600, while the sum is 61.

Subtracting 3165781325668 from its reverse (8665231875613), we obtain a palindrome (5499450549945).

The spelling of 3165781325668 in words is "three trillion, one hundred sixty-five billion, seven hundred eighty-one million, three hundred twenty-five thousand, six hundred sixty-eight".