20450105441155 has 32 divisors (see below), whose sum is σ = 27581072520960. Its totient is φ = 14451836528640.

The previous prime is 20450105441119. The next prime is 20450105441189. The reversal of 20450105441155 is 55114450105402.

It is not a de Polignac number, because 20450105441155 - 2⁹ = 20450105440643 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47790811 + ... + 48216820.

It is an arithmetic number, because the mean of its divisors is an integer number (861908516280).

Almost surely, 2^{20450105441155} is an apocalyptic number.

20450105441155 is a deficient number, since it is larger than the sum of its proper divisors (7130967079805).

20450105441155 is a wasteful number, since it uses less digits than its factorization.

20450105441155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96007791.

The product of its (nonzero) digits is 80000, while the sum is 37.

Adding to 20450105441155 its reverse (55114450105402), we get a palindrome (75564555546557).

The spelling of 20450105441155 in words is "twenty trillion, four hundred fifty billion, one hundred five million, four hundred forty-one thousand, one hundred fifty-five".