4020420213256 has 8 divisors (see below), whose sum is σ = 7538287899870. Its totient is φ = 2010210106624.

The previous prime is 4020420213239. The next prime is 4020420213269. The reversal of 4020420213256 is 6523120240204.

4020420213256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2082104702500 + 1938315510756 = 1442950^2 + 1392234^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251276263321 + ... + 251276263336.

Almost surely, 2^{4020420213256} is an apocalyptic number.

It is an amenable number.

4020420213256 is a deficient number, since it is larger than the sum of its proper divisors (3517867686614).

4020420213256 is a wasteful number, since it uses less digits than its factorization.

4020420213256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502552526663 (or 502552526659 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

The spelling of 4020420213256 in words is "four trillion, twenty billion, four hundred twenty million, two hundred thirteen thousand, two hundred fifty-six".