2020155552 has 120 divisors (see below), whose sum is σ = 5954721696. Its totient is φ = 671856768.

The previous prime is 2020155539. The next prime is 2020155569. The reversal of 2020155552 is 2555510202.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2132743 + ... + 2133689.

Almost surely, 2^2020155552 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 2020155552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2977360848).

2020155552 is an abundant number, since it is smaller than the sum of its proper divisors (3934566144).

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

2020155552 is an equidigital number, since it uses as much as digits as its factorization.

2020155552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792 (or 1775 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 2020155552 is about 44946.1405684626. The cubic root of 2020155552 is about 1264.1393119431.

Adding to 2020155552 its reverse (2555510202), we get a palindrome (4575665754).

The spelling of 2020155552 in words is "two billion, twenty million, one hundred fifty-five thousand, five hundred fifty-two".