1066263551 has 2 divisors, whose sum is σ = 1066263552. Its totient is φ = 1066263550.

The previous prime is 1066263547. The next prime is 1066263559. The reversal of 1066263551 is 1553626601.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1066263551 - 2² = 1066263547 is a prime.

It is a super-2 number, since 2×1066263551² = 2273835920382259202, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1066263559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533131775 + 533131776.

It is an arithmetic number, because the mean of its divisors is an integer number (533131776).

Almost surely, 2^1066263551 is an apocalyptic number.

1066263551 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066263551 is an equidigital number, since it uses as much as digits as its factorization.

1066263551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 1066263551 is about 32653.6912308547. The cubic root of 1066263551 is about 1021.6171805828.

The spelling of 1066263551 in words is "one billion, sixty-six million, two hundred sixty-three thousand, five hundred fifty-one".