20455645401336 has 32 divisors (see below), whose sum is σ = 52328395215360. Its totient is φ = 6659977572192.

The previous prime is 20455645401221. The next prime is 20455645401341. The reversal of 20455645401336 is 63310454655402.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 9910679880 + ... + 9910681943.

It is an arithmetic number, because the mean of its divisors is an integer number (1635262350480).

Almost surely, 2^{20455645401336} is an apocalyptic number.

It is an amenable number.

20455645401336 is an abundant number, since it is smaller than the sum of its proper divisors (31872749814024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20455645401336 is a wasteful number, since it uses less digits than its factorization.

20455645401336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19821361875 (or 19821361871 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 48.

The spelling of 20455645401336 in words is "twenty trillion, four hundred fifty-five billion, six hundred forty-five million, four hundred one thousand, three hundred thirty-six".