201636420200 has 96 divisors (see below), whose sum is σ = 483521909760. Its totient is φ = 78156576000.

The previous prime is 201636420191. The next prime is 201636420221. The reversal of 201636420200 is 2024636102.

It is a self number, because there is not a number n which added to its sum of digits gives 201636420200.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 843209 + ... + 1055591.

It is an arithmetic number, because the mean of its divisors is an integer number (5036686560).

Almost surely, 2^201636420200 is an apocalyptic number.

201636420200 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 201636420200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241760954880).

201636420200 is an abundant number, since it is smaller than the sum of its proper divisors (281885489560).

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

201636420200 is a wasteful number, since it uses less digits than its factorization.

201636420200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212547 (or 212538 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The spelling of 201636420200 in words is "two hundred one billion, six hundred thirty-six million, four hundred twenty thousand, two hundred".