20001867020 has 12 divisors (see below), whose sum is σ = 42003920784. Its totient is φ = 8000746800.

The previous prime is 20001866959. The next prime is 20001867029. The reversal of 20001867020 is 2076810002.

It is not an unprimeable number, because it can be changed into a prime (20001867029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500046656 + ... + 500046695.

It is an arithmetic number, because the mean of its divisors is an integer number (3500326732).

Almost surely, 2^20001867020 is an apocalyptic number.

20001867020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20001867020 is an abundant number, since it is smaller than the sum of its proper divisors (22002053764).

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

20001867020 is a wasteful number, since it uses less digits than its factorization.

20001867020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000093360 (or 1000093358 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The spelling of 20001867020 in words is "twenty billion, one million, eight hundred sixty-seven thousand, twenty".