20670710562105 has 8 divisors (see below), whose sum is σ = 33073136899392. Its totient is φ = 11024378966448.

The previous prime is 20670710562091. The next prime is 20670710562109. The reversal of 20670710562105 is 50126501707602.

It is a happy number.

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

It is not a de Polignac number, because 20670710562105 - 2²⁷ = 20670576344377 is a prime.

It is a super-3 number, since 3×20670710562105³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20670710562109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 689023685389 + ... + 689023685418.

It is an arithmetic number, because the mean of its divisors is an integer number (4134142112424).

Almost surely, 2^{20670710562105} is an apocalyptic number.

It is an amenable number.

20670710562105 is a deficient number, since it is larger than the sum of its proper divisors (12402426337287).

20670710562105 is a wasteful number, since it uses less digits than its factorization.

20670710562105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378047370815.

The product of its (nonzero) digits is 176400, while the sum is 42.

The spelling of 20670710562105 in words is "twenty trillion, six hundred seventy billion, seven hundred ten million, five hundred sixty-two thousand, one hundred five".