1066421467 has 2 divisors, whose sum is σ = 1066421468. Its totient is φ = 1066421466.

The previous prime is 1066421431. The next prime is 1066421471. The reversal of 1066421467 is 7641246601.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1066421467 is a prime.

It is a super-2 number, since 2×1066421467² = 2274509490556864178, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1066421497) 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, 533210733 + 533210734.

It is an arithmetic number, because the mean of its divisors is an integer number (533210734).

Almost surely, 2^1066421467 is an apocalyptic number.

1066421467 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066421467 is an equidigital number, since it uses as much as digits as its factorization.

1066421467 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 1066421467 is about 32656.1091834285. The cubic root of 1066421467 is about 1021.6676126843.

It can be divided in two parts, 10664 and 21467, that added together give a triangular number (32131 = T₂₅₃).

The spelling of 1066421467 in words is "one billion, sixty-six million, four hundred twenty-one thousand, four hundred sixty-seven".