20404682268085 has 8 divisors (see below), whose sum is σ = 25275477390336. Its totient is φ = 15797173368720.

The previous prime is 20404682268071. The next prime is 20404682268097. The reversal of 20404682268085 is 58086228640402.

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

It is not a de Polignac number, because 20404682268085 - 2²⁹ = 20404145397173 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 65821555549 + ... + 65821555858.

It is an arithmetic number, because the mean of its divisors is an integer number (3159434673792).

Almost surely, 2^{20404682268085} is an apocalyptic number.

It is an amenable number.

20404682268085 is a deficient number, since it is larger than the sum of its proper divisors (4870795122251).

20404682268085 is a wasteful number, since it uses less digits than its factorization.

20404682268085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131643111443.

The product of its (nonzero) digits is 11796480, while the sum is 55.

The spelling of 20404682268085 in words is "twenty trillion, four hundred four billion, six hundred eighty-two million, two hundred sixty-eight thousand, eighty-five".