4020556411 has 4 divisors (see below), whose sum is σ = 4043017800. Its totient is φ = 3998095024.

The previous prime is 4020556387. The next prime is 4020556429. The reversal of 4020556411 is 1146550204.

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 4020556411 - 2⁷ = 4020556283 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4020556411.

It is not an unprimeable number, because it can be changed into a prime (4020556471) 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, 11230426 + ... + 11230783.

It is an arithmetic number, because the mean of its divisors is an integer number (1010754450).

Almost surely, 2^4020556411 is an apocalyptic number.

4020556411 is a deficient number, since it is larger than the sum of its proper divisors (22461389).

4020556411 is a wasteful number, since it uses less digits than its factorization.

4020556411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22461388.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 4020556411 is about 63407.8576439860. The cubic root of 4020556411 is about 1590.1156793861.

The spelling of 4020556411 in words is "four billion, twenty million, five hundred fifty-six thousand, four hundred eleven".