2028163564 has 96 divisors (see below), whose sum is σ = 4267468800. Its totient is φ = 825484800.

The previous prime is 2028163549. The next prime is 2028163567. The reversal of 2028163564 is 4653618202.

It is a super-2 number, since 2×2028163564² = 8226894884674364192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2028163567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12144609 + ... + 12144775.

It is an arithmetic number, because the mean of its divisors is an integer number (44452800).

Almost surely, 2^2028163564 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2028163564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2133734400).

2028163564 is an abundant number, since it is smaller than the sum of its proper divisors (2239305236).

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

2028163564 is a wasteful number, since it uses less digits than its factorization.

2028163564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439 (or 437 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 2028163564 is about 45035.1369932412. The cubic root of 2028163564 is about 1265.8074831192.

It can be divided in two parts, 20281 and 63564, that added together give a triangular number (83845 = T₄₀₉).

The spelling of 2028163564 in words is "two billion, twenty-eight million, one hundred sixty-three thousand, five hundred sixty-four".