20541530600 has 24 divisors (see below), whose sum is σ = 47759059110. Its totient is φ = 8216612160.

The previous prime is 20541530579. The next prime is 20541530701. The reversal of 20541530600 is 603514502.

It can be written as a sum of positive squares in 3 ways, for example, as 11501704516 + 9039826084 = 107246^2 + 95078^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20541530600.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 51353627 + ... + 51354026.

Almost surely, 2^20541530600 is an apocalyptic number.

20541530600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20541530600 is an abundant number, since it is smaller than the sum of its proper divisors (27217528510).

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

20541530600 is a wasteful number, since it uses less digits than its factorization.

20541530600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102707669 (or 102707660 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The spelling of 20541530600 in words is "twenty billion, five hundred forty-one million, five hundred thirty thousand, six hundred".