202020002000 has 80 divisors (see below), whose sum is σ = 490056562944. Its totient is φ = 80547920000.

The previous prime is 202020001991. The next prime is 202020002017. The reversal of 202020002000 is 200020202.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 459605 + ... + 784395.

Almost surely, 2^202020002000 is an apocalyptic number.

202020002000 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 202020002000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245028281472).

202020002000 is an abundant number, since it is smaller than the sum of its proper divisors (288036560944).

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

202020002000 is a wasteful number, since it uses less digits than its factorization.

202020002000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325125 (or 325109 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 8.

Adding to 202020002000 its reverse (200020202), we get a palindrome (202220022202).

The spelling of 202020002000 in words is "two hundred two billion, twenty million, two thousand".