20435220050105 has 48 divisors (see below), whose sum is σ = 28698729681024. Its totient is φ = 13928078545920.

The previous prime is 20435220050099. The next prime is 20435220050123. The reversal of 20435220050105 is 50105002253402.

It is not a de Polignac number, because 20435220050105 - 2³² = 20430925082809 is a prime.

It is a super-2 number, since 2×20435220050105² (a number of 27 digits) contains 22 as substring.

It is a Duffinian 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 in 47 ways as a sum of consecutive naturals, for example, 26516954 + ... + 27276716.

It is an arithmetic number, because the mean of its divisors is an integer number (597890201688).

Almost surely, 2^{20435220050105} is an apocalyptic number.

It is an amenable number.

20435220050105 is a deficient number, since it is larger than the sum of its proper divisors (8263509630919).

20435220050105 is a wasteful number, since it uses less digits than its factorization.

20435220050105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760446 (or 760439 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The spelling of 20435220050105 in words is "twenty trillion, four hundred thirty-five billion, two hundred twenty million, fifty thousand, one hundred five".