20550551311035 has 24 divisors (see below), whose sum is σ = 35627500391184. Its totient is φ = 10958280252480.

The previous prime is 20550551311027. The next prime is 20550551311067. The reversal of 20550551311035 is 53011315505502.

20550551311035 is a `hidden beast` number, since 2 + 0 + 5 + 505 + 5 + 1 + 3 + 110 + 35 = 666.

It is not a de Polignac number, because 20550551311035 - 2³ = 20550551311027 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 41706096 + ... + 42195965.

It is an arithmetic number, because the mean of its divisors is an integer number (1484479182966).

Almost surely, 2^{20550551311035} is an apocalyptic number.

20550551311035 is a deficient number, since it is larger than the sum of its proper divisors (15076949080149).

20550551311035 is a wasteful number, since it uses less digits than its factorization.

20550551311035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83907515 (or 83907512 counting only the distinct ones).

The product of its (nonzero) digits is 56250, while the sum is 36.

Adding to 20550551311035 its reverse (53011315505502), we get a palindrome (73561866816537).

The spelling of 20550551311035 in words is "twenty trillion, five hundred fifty billion, five hundred fifty-one million, three hundred eleven thousand, thirty-five".