20543151050 has 24 divisors (see below), whose sum is σ = 40457925036. Its totient is φ = 7733891840.

The previous prime is 20543151047. The next prime is 20543151077. The reversal of 20543151050 is 5015134502.

It can be written as a sum of positive squares in 6 ways, for example, as 6005785009 + 14537366041 = 77497^2 + 120571^2 .

It is a super-2 number, since 2×20543151050² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12083357 + ... + 12085056.

Almost surely, 2^20543151050 is an apocalyptic number.

20543151050 is a deficient number, since it is larger than the sum of its proper divisors (19914773986).

20543151050 is a wasteful number, since it uses less digits than its factorization.

20543151050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24168442 (or 24168437 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

Adding to 20543151050 its reverse (5015134502), we get a palindrome (25558285552).

The spelling of 20543151050 in words is "twenty billion, five hundred forty-three million, one hundred fifty-one thousand, fifty".