20168683333685 has 8 divisors (see below), whose sum is σ = 24765266977440. Its totient is φ = 15759715348944.

The previous prime is 20168683333681. The next prime is 20168683333739. The reversal of 20168683333685 is 58633338686102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20168683333685 - 2² = 20168683333681 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20168683333681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46903914515 + ... + 46903914944.

It is an arithmetic number, because the mean of its divisors is an integer number (3095658372180).

Almost surely, 2^{20168683333685} is an apocalyptic number.

It is an amenable number.

20168683333685 is a deficient number, since it is larger than the sum of its proper divisors (4596583643755).

20168683333685 is an equidigital number, since it uses as much as digits as its factorization.

20168683333685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93807829507.

The product of its (nonzero) digits is 89579520, while the sum is 62.

The spelling of 20168683333685 in words is "twenty trillion, one hundred sixty-eight billion, six hundred eighty-three million, three hundred thirty-three thousand, six hundred eighty-five".