4016065421 has 2 divisors, whose sum is σ = 4016065422. Its totient is φ = 4016065420.

The previous prime is 4016065399. The next prime is 4016065429. The reversal of 4016065421 is 1245606104.

4016065421 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3932544100 + 83521321 = 62710^2 + 9139^2 .

It is a cyclic number.

It is not a de Polignac number, because 4016065421 - 2³⁰ = 2942323597 is a prime.

It is a super-2 number, since 2×4016065421² = 32257562931503814482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4016065429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2008032710 + 2008032711.

It is an arithmetic number, because the mean of its divisors is an integer number (2008032711).

Almost surely, 2^4016065421 is an apocalyptic number.

It is an amenable number.

4016065421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4016065421 is an equidigital number, since it uses as much as digits as its factorization.

4016065421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 4016065421 is about 63372.4342360304. The cubic root of 4016065421 is about 1589.5234019782.

The spelling of 4016065421 in words is "four billion, sixteen million, sixty-five thousand, four hundred twenty-one".