20670630105 has 8 divisors (see below), whose sum is σ = 33073008192. Its totient is φ = 11024336048.

The previous prime is 20670630083. The next prime is 20670630107. The reversal of 20670630105 is 50103607602.

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 20670630105 - 2¹⁰ = 20670629081 is a prime.

It is a super-2 number, since 2×20670630105² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20670630107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 689020989 + ... + 689021018.

It is an arithmetic number, because the mean of its divisors is an integer number (4134126024).

Almost surely, 2^20670630105 is an apocalyptic number.

It is an amenable number.

20670630105 is a deficient number, since it is larger than the sum of its proper divisors (12402378087).

20670630105 is a wasteful number, since it uses less digits than its factorization.

20670630105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378042015.

The product of its (nonzero) digits is 7560, while the sum is 30.

The spelling of 20670630105 in words is "twenty billion, six hundred seventy million, six hundred thirty thousand, one hundred five".