20200017020 has 24 divisors (see below), whose sum is σ = 43115448768. Its totient is φ = 7947547200.

The previous prime is 20200017001. The next prime is 20200017023. The reversal of 20200017020 is 2071000202.

It is a junction number, because it is equal to n+sod(n) for n = 20200016986 and 20200017004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200017023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8277476 + ... + 8279915.

It is an arithmetic number, because the mean of its divisors is an integer number (1796477032).

Almost surely, 2^20200017020 is an apocalyptic number.

20200017020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20200017020 is an abundant number, since it is smaller than the sum of its proper divisors (22915431748).

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

20200017020 is a wasteful number, since it uses less digits than its factorization.

20200017020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16557461 (or 16557459 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 14.

Adding to 20200017020 its reverse (2071000202), we get a palindrome (22271017222).

The spelling of 20200017020 in words is "twenty billion, two hundred million, seventeen thousand, twenty".