20543642631050 has 96 divisors (see below), whose sum is σ = 47825278450560. Its totient is φ = 6378297753600.

The previous prime is 20543642630999. The next prime is 20543642631067. The reversal of 20543642631050 is 5013624634502.

It is a junction number, because it is equal to n+sod(n) for n = 20543642630989 and 20543642631007.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9391895 + ... + 11370794.

It is an arithmetic number, because the mean of its divisors is an integer number (498179983860).

Almost surely, 2^{20543642631050} is an apocalyptic number.

20543642631050 is an abundant number, since it is smaller than the sum of its proper divisors (27281635819510).

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

20543642631050 is a wasteful number, since it uses less digits than its factorization.

20543642631050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20762976 (or 20762971 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 41.

The spelling of 20543642631050 in words is "twenty trillion, five hundred forty-three billion, six hundred forty-two million, six hundred thirty-one thousand, fifty".