20345006213606 has 8 divisors (see below), whose sum is σ = 30533167360800. Its totient is φ = 10167283760008.

The previous prime is 20345006213593. The next prime is 20345006213717. The reversal of 20345006213606 is 60631260054302.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20345006213606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2609668526 + ... + 2609676321.

It is an arithmetic number, because the mean of its divisors is an integer number (3816645920100).

Almost surely, 2^{20345006213606} is an apocalyptic number.

20345006213606 is a deficient number, since it is larger than the sum of its proper divisors (10188161147194).

20345006213606 is a wasteful number, since it uses less digits than its factorization.

20345006213606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5219346798.

The product of its (nonzero) digits is 155520, while the sum is 38.

Adding to 20345006213606 its reverse (60631260054302), we get a palindrome (80976266267908).

The spelling of 20345006213606 in words is "twenty trillion, three hundred forty-five billion, six million, two hundred thirteen thousand, six hundred six".