1066351603 has 2 divisors, whose sum is σ = 1066351604. Its totient is φ = 1066351602.

The previous prime is 1066351591. The next prime is 1066351619. The reversal of 1066351603 is 3061536601.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1066351603 - 2¹⁷ = 1066220531 is a prime.

It is a super-2 number, since 2×1066351603² = 2274211482441339218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1066351103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533175801 + 533175802.

It is an arithmetic number, because the mean of its divisors is an integer number (533175802).

Almost surely, 2^1066351603 is an apocalyptic number.

1066351603 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066351603 is an equidigital number, since it uses as much as digits as its factorization.

1066351603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 1066351603 is about 32655.0394732574. The cubic root of 1066351603 is about 1021.6453015103.

The spelling of 1066351603 in words is "one billion, sixty-six million, three hundred fifty-one thousand, six hundred three".