1066020413 has 2 divisors, whose sum is σ = 1066020414. Its totient is φ = 1066020412.

The previous prime is 1066020401. The next prime is 1066020481. The reversal of 1066020413 is 3140206601.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 956231929 + 109788484 = 30923^2 + 10478^2 .

It is a cyclic number.

It is not a de Polignac number, because 1066020413 - 2²⁰ = 1064971837 is a prime.

It is a super-2 number, since 2×1066020413² = 2272799041865381138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1066020493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533010206 + 533010207.

It is an arithmetic number, because the mean of its divisors is an integer number (533010207).

Almost surely, 2^1066020413 is an apocalyptic number.

It is an amenable number.

1066020413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066020413 is an equidigital number, since it uses as much as digits as its factorization.

1066020413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1066020413 is about 32649.9680398006. The cubic root of 1066020413 is about 1021.5395222214.

The spelling of 1066020413 in words is "one billion, sixty-six million, twenty thousand, four hundred thirteen".