20500030206 has 64 divisors (see below), whose sum is σ = 45892492800. Its totient is φ = 6783004800.

The previous prime is 20500030099. The next prime is 20500030211. The reversal of 20500030206 is 60203000502.

It is a super-4 number, since 4×20500030206⁴ (a number of 42 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4305255 + ... + 4310013.

It is an arithmetic number, because the mean of its divisors is an integer number (717070200).

Almost surely, 2^20500030206 is an apocalyptic number.

20500030206 is an abundant number, since it is smaller than the sum of its proper divisors (25392462594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20500030206 is a wasteful number, since it uses less digits than its factorization.

20500030206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5342 (or 5336 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

Adding to 20500030206 its reverse (60203000502), we get a palindrome (80703030708).

The spelling of 20500030206 in words is "twenty billion, five hundred million, thirty thousand, two hundred six".