20127060204646 has 4 divisors (see below), whose sum is σ = 30190590306972. Its totient is φ = 10063530102322.

The previous prime is 20127060204593. The next prime is 20127060204661. The reversal of 20127060204646 is 64640206072102.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 20127060204599 and 20127060204608.

It is a congruent number.

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, 5031765051160 + ... + 5031765051163.

It is an arithmetic number, because the mean of its divisors is an integer number (7547647576743).

Almost surely, 2^{20127060204646} is an apocalyptic number.

20127060204646 is a deficient number, since it is larger than the sum of its proper divisors (10063530102326).

20127060204646 is a wasteful number, since it uses less digits than its factorization.

20127060204646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10063530102325.

The product of its (nonzero) digits is 193536, while the sum is 40.

Adding to 20127060204646 its reverse (64640206072102), we get a palindrome (84767266276748).

The spelling of 20127060204646 in words is "twenty trillion, one hundred twenty-seven billion, sixty million, two hundred four thousand, six hundred forty-six".