20793076166785 has 8 divisors (see below), whose sum is σ = 26871052277160. Its totient is φ = 15354887015424.

The previous prime is 20793076166743. The next prime is 20793076166791. The reversal of 20793076166785 is 58766167039702.

It can be written as a sum of positive squares in 4 ways, for example, as 582045400561 + 20211030766224 = 762919^2 + 4495668^2 .

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 20793076166785 - 2³¹ = 20790928683137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20793076166785.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159946739680 + ... + 159946739809.

It is an arithmetic number, because the mean of its divisors is an integer number (3358881534645).

Almost surely, 2^{20793076166785} is an apocalyptic number.

It is an amenable number.

20793076166785 is a deficient number, since it is larger than the sum of its proper divisors (6077976110375).

20793076166785 is a wasteful number, since it uses less digits than its factorization.

20793076166785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319893479507.

The product of its (nonzero) digits is 160030080, while the sum is 67.

The spelling of 20793076166785 in words is "twenty trillion, seven hundred ninety-three billion, seventy-six million, one hundred sixty-six thousand, seven hundred eighty-five".