1066450423 has 2 divisors, whose sum is σ = 1066450424. Its totient is φ = 1066450422.

The previous prime is 1066450391. The next prime is 1066450501. The reversal of 1066450423 is 3240546601.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1066450423 - 2⁵ = 1066450391 is a prime.

It is a super-2 number, since 2×1066450423² = 2274633009433757858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1066454423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533225211 + 533225212.

It is an arithmetic number, because the mean of its divisors is an integer number (533225212).

Almost surely, 2^1066450423 is an apocalyptic number.

1066450423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066450423 is an equidigital number, since it uses as much as digits as its factorization.

1066450423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 1066450423 is about 32656.5525277853. The cubic root of 1066450423 is about 1021.6768595411.

The spelling of 1066450423 in words is "one billion, sixty-six million, four hundred fifty thousand, four hundred twenty-three".