20450541456339 has 4 divisors (see below), whose sum is σ = 27267388608456. Its totient is φ = 13633694304224.

The previous prime is 20450541456299. The next prime is 20450541456391. The reversal of 20450541456339 is 93365414505402.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20450541456339 - 2³¹ = 20448393972691 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20450541456291 and 20450541456300.

It is not an unprimeable number, because it can be changed into a prime (20450541455339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3408423576054 + ... + 3408423576059.

It is an arithmetic number, because the mean of its divisors is an integer number (6816847152114).

Almost surely, 2^{20450541456339} is an apocalyptic number.

20450541456339 is a deficient number, since it is larger than the sum of its proper divisors (6816847152117).

20450541456339 is an equidigital number, since it uses as much as digits as its factorization.

20450541456339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6816847152116.

The product of its (nonzero) digits is 7776000, while the sum is 51.

The spelling of 20450541456339 in words is "twenty trillion, four hundred fifty billion, five hundred forty-one million, four hundred fifty-six thousand, three hundred thirty-nine".