4020420555044 has 12 divisors (see below), whose sum is σ = 7120503875184. Its totient is φ = 1985990876424.

The previous prime is 4020420555001. The next prime is 4020420555079. The reversal of 4020420555044 is 4405550240204.

It is a junction number, because it is equal to n+sod(n) for n = 4020420554995 and 4020420555013.

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 3 ways as a sum of consecutive naturals, for example, 6054849902 + ... + 6054850565.

It is an arithmetic number, because the mean of its divisors is an integer number (593375322932).

Almost surely, 2^{4020420555044} is an apocalyptic number.

It is an amenable number.

4020420555044 is a deficient number, since it is larger than the sum of its proper divisors (3100083320140).

4020420555044 is a wasteful number, since it uses less digits than its factorization.

4020420555044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12109700554 (or 12109700552 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 35.

Adding to 4020420555044 its reverse (4405550240204), we get a palindrome (8425970795248).

The spelling of 4020420555044 in words is "four trillion, twenty billion, four hundred twenty million, five hundred fifty-five thousand, forty-four".