20544241650 has 24 divisors (see below), whose sum is σ = 50949719664. Its totient is φ = 5478464400.

The previous prime is 20544241649. The next prime is 20544241693. The reversal of 20544241650 is 5614244502.

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 11 ways as a sum of consecutive naturals, for example, 68480656 + ... + 68480955.

It is an arithmetic number, because the mean of its divisors is an integer number (2122904986).

Almost surely, 2^20544241650 is an apocalyptic number.

20544241650 is an abundant number, since it is smaller than the sum of its proper divisors (30405478014).

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

20544241650 is a wasteful number, since it uses less digits than its factorization.

20544241650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136961626 (or 136961621 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 33.

The spelling of 20544241650 in words is "twenty billion, five hundred forty-four million, two hundred forty-one thousand, six hundred fifty".