1066655267 has 2 divisors, whose sum is σ = 1066655268. Its totient is φ = 1066655266.

The previous prime is 1066655197. The next prime is 1066655279. The reversal of 1066655267 is 7625566601.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1066655267 - 2¹² = 1066651171 is a prime.

It is a super-2 number, since 2×1066655267² = 2275506917237682578, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1066655297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533327633 + 533327634.

It is an arithmetic number, because the mean of its divisors is an integer number (533327634).

Almost surely, 2^1066655267 is an apocalyptic number.

1066655267 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066655267 is an equidigital number, since it uses as much as digits as its factorization.

1066655267 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 453600, while the sum is 44.

The square root of 1066655267 is about 32659.6887156017. The cubic root of 1066655267 is about 1021.7422699817.

The spelling of 1066655267 in words is "one billion, sixty-six million, six hundred fifty-five thousand, two hundred sixty-seven".