20206210700 has 144 divisors (see below), whose sum is σ = 49397005056. Its totient is φ = 7118496000.

The previous prime is 20206210691. The next prime is 20206210721. The reversal of 20206210700 is 701260202.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19225175 + ... + 19226225.

Almost surely, 2^20206210700 is an apocalyptic number.

20206210700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20206210700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24698502528).

20206210700 is an abundant number, since it is smaller than the sum of its proper divisors (29190794356).

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

20206210700 is a wasteful number, since it uses less digits than its factorization.

20206210700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1744 (or 1737 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

Adding to 20206210700 its reverse (701260202), we get a palindrome (20907470902).

The spelling of 20206210700 in words is "twenty billion, two hundred six million, two hundred ten thousand, seven hundred".