20168336835185 has 16 divisors (see below), whose sum is σ = 30173927317632. Its totient is φ = 12572469715200.

The previous prime is 20168336835167. The next prime is 20168336835217. The reversal of 20168336835185 is 58153863386102.

It is not a de Polignac number, because 20168336835185 - 2³² = 20164041867889 is a prime.

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, 26192644856 + ... + 26192645625.

It is an arithmetic number, because the mean of its divisors is an integer number (1885870457352).

Almost surely, 2^{20168336835185} is an apocalyptic number.

It is an amenable number.

20168336835185 is a deficient number, since it is larger than the sum of its proper divisors (10005590482447).

20168336835185 is a wasteful number, since it uses less digits than its factorization.

20168336835185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52385290504.

The product of its (nonzero) digits is 24883200, while the sum is 59.

The spelling of 20168336835185 in words is "twenty trillion, one hundred sixty-eight billion, three hundred thirty-six million, eight hundred thirty-five thousand, one hundred eighty-five".