20511059009050 has 24 divisors (see below), whose sum is σ = 38797189588800. Its totient is φ = 8065365575280.

The previous prime is 20511059009041. The next prime is 20511059009081. The reversal of 20511059009050 is 5090095011502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3476447730 + ... + 3476453629.

It is an arithmetic number, because the mean of its divisors is an integer number (1616549566200).

Almost surely, 2^{20511059009050} is an apocalyptic number.

20511059009050 is a deficient number, since it is larger than the sum of its proper divisors (18286130579750).

20511059009050 is a wasteful number, since it uses less digits than its factorization.

20511059009050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6952901430 (or 6952901425 counting only the distinct ones).

The product of its (nonzero) digits is 20250, while the sum is 37.

The spelling of 20511059009050 in words is "twenty trillion, five hundred eleven billion, fifty-nine million, nine thousand, fifty".