20773415572550 has 24 divisors (see below), whose sum is σ = 38683533898200. Its totient is φ = 8299692910080.

The previous prime is 20773415572543. The next prime is 20773415572577. The reversal of 20773415572550 is 5527551437702.

It is a junction number, because it is equal to n+sod(n) for n = 20773415572492 and 20773415572501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 241789595 + ... + 241875494.

It is an arithmetic number, because the mean of its divisors is an integer number (1611813912425).

Almost surely, 2^{20773415572550} is an apocalyptic number.

20773415572550 is a deficient number, since it is larger than the sum of its proper divisors (17910118325650).

20773415572550 is a wasteful number, since it uses less digits than its factorization.

20773415572550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483665960 (or 483665955 counting only the distinct ones).

The product of its (nonzero) digits is 10290000, while the sum is 53.

The spelling of 20773415572550 in words is "twenty trillion, seven hundred seventy-three billion, four hundred fifteen million, five hundred seventy-two thousand, five hundred fifty".