20116164235705 has 16 divisors (see below), whose sum is σ = 25190076320640. Its totient is φ = 15392541909888.

The previous prime is 20116164235681. The next prime is 20116164235721. The reversal of 20116164235705 is 50753246161102.

It is a cyclic number.

It is not a de Polignac number, because 20116164235705 - 2⁴¹ = 17917140980153 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, 1400475 + ... + 6495664.

It is an arithmetic number, because the mean of its divisors is an integer number (1574379770040).

Almost surely, 2^{20116164235705} is an apocalyptic number.

It is an amenable number.

20116164235705 is a deficient number, since it is larger than the sum of its proper divisors (5073912084935).

20116164235705 is a wasteful number, since it uses less digits than its factorization.

20116164235705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7918320.

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 20116164235705 in words is "twenty trillion, one hundred sixteen billion, one hundred sixty-four million, two hundred thirty-five thousand, seven hundred five".