20450346126305 has 4 divisors (see below), whose sum is σ = 24540415351572. Its totient is φ = 16360276901040.

The previous prime is 20450346126283. The next prime is 20450346126377. The reversal of 20450346126305 is 50362164305402.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13791092340496 + 6659253785809 = 3713636^2 + 2580553^2 .

It is not a de Polignac number, because 20450346126305 - 2⁶ = 20450346126241 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2045034612626 + ... + 2045034612635.

It is an arithmetic number, because the mean of its divisors is an integer number (6135103837893).

Almost surely, 2^{20450346126305} is an apocalyptic number.

It is an amenable number.

20450346126305 is a deficient number, since it is larger than the sum of its proper divisors (4090069225267).

20450346126305 is an equidigital number, since it uses as much as digits as its factorization.

20450346126305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4090069225266.

The product of its (nonzero) digits is 518400, while the sum is 41.

The spelling of 20450346126305 in words is "twenty trillion, four hundred fifty billion, three hundred forty-six million, one hundred twenty-six thousand, three hundred five".