20550650213 has 8 divisors (see below), whose sum is σ = 21493921536. Its totient is φ = 19611526000.

The previous prime is 20550650207. The next prime is 20550650251. The reversal of 20550650213 is 31205605502.

It is a happy number.

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 20550650213 - 2¹² = 20550646117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20550650513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1026638 + ... + 1046463.

It is an arithmetic number, because the mean of its divisors is an integer number (2686740192).

Almost surely, 2^20550650213 is an apocalyptic number.

20550650213 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20550650213 is a deficient number, since it is larger than the sum of its proper divisors (943271323).

20550650213 is a wasteful number, since it uses less digits than its factorization.

20550650213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2073555.

The product of its (nonzero) digits is 9000, while the sum is 29.

The spelling of 20550650213 in words is "twenty billion, five hundred fifty million, six hundred fifty thousand, two hundred thirteen".