2020546561 has 8 divisors (see below), whose sum is σ = 2204761824. Its totient is φ = 1836419520.

The previous prime is 2020546501. The next prime is 2020546589. The reversal of 2020546561 is 1656450202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2020546561 - 2¹⁵ = 2020513793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2020546501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31506 + ... + 70948.

It is an arithmetic number, because the mean of its divisors is an integer number (275595228).

Almost surely, 2^2020546561 is an apocalyptic number.

It is an amenable number.

2020546561 is a deficient number, since it is larger than the sum of its proper divisors (184215263).

2020546561 is a wasteful number, since it uses less digits than its factorization.

2020546561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44111.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 2020546561 is about 44950.4901085628. The cubic root of 2020546561 is about 1264.2208663826.

Adding to 2020546561 its reverse (1656450202), we get a palindrome (3676996763).

It can be divided in two parts, 20205 and 46561, that added together give a palindrome (66766).

The spelling of 2020546561 in words is "two billion, twenty million, five hundred forty-six thousand, five hundred sixty-one".