20605006055752 has 8 divisors (see below), whose sum is σ = 38634386354550. Its totient is φ = 10302503027872.

The previous prime is 20605006055729. The next prime is 20605006055761. The reversal of 20605006055752 is 25755060050602.

It can be written as a sum of positive squares in only one way, i.e., 18108207879876 + 2496798175876 = 4255374^2 + 1580126^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 20605006055699 and 20605006055708.

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 as a sum of consecutive naturals, namely, 1287812878477 + ... + 1287812878492.

Almost surely, 2^{20605006055752} is an apocalyptic number.

It is an amenable number.

20605006055752 is a deficient number, since it is larger than the sum of its proper divisors (18029380298798).

20605006055752 is a wasteful number, since it uses less digits than its factorization.

20605006055752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2575625756975 (or 2575625756971 counting only the distinct ones).

The product of its (nonzero) digits is 630000, while the sum is 43.

The spelling of 20605006055752 in words is "twenty trillion, six hundred five billion, six million, fifty-five thousand, seven hundred fifty-two".