20300280168 has 96 divisors (see below), whose sum is σ = 59143318560. Its totient is φ = 5789589120.

The previous prime is 20300280167. The next prime is 20300280191. The reversal of 20300280168 is 86108200302.

It is not an unprimeable number, because it can be changed into a prime (20300280167) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 646758 + ... + 677418.

It is an arithmetic number, because the mean of its divisors is an integer number (616076235).

Almost surely, 2^20300280168 is an apocalyptic number.

20300280168 is a gapful number since it is divisible by the number (28) 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 20300280168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29571659280).

20300280168 is an abundant number, since it is smaller than the sum of its proper divisors (38843038392).

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

20300280168 is a wasteful number, since it uses less digits than its factorization.

20300280168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31247 (or 31236 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The spelling of 20300280168 in words is "twenty billion, three hundred million, two hundred eighty thousand, one hundred sixty-eight".