1066043265 has 24 divisors (see below), whose sum is σ = 1984147200. Its totient is φ = 487333728.

The previous prime is 1066043263. The next prime is 1066043267. The reversal of 1066043265 is 5623406601.

1066043265 is digitally balanced in base 2 and base 6, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1066043263) and next prime (1066043267).

It is not a de Polignac number, because 1066043265 - 2¹ = 1066043263 is a prime.

It is a super-2 number, since 2×1066043265² = 2272896485703720450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1066043263) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 724465 + ... + 725934.

It is an arithmetic number, because the mean of its divisors is an integer number (82672800).

Almost surely, 2^1066043265 is an apocalyptic number.

1066043265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1066043265 is a deficient number, since it is larger than the sum of its proper divisors (918103935).

1066043265 is a wasteful number, since it uses less digits than its factorization.

1066043265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450421 (or 1450414 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 1066043265 is about 32650.3179923259. The cubic root of 1066043265 is about 1021.5468216608.

Adding to 1066043265 its reverse (5623406601), we get a palindrome (6689449866).

The spelling of 1066043265 in words is "one billion, sixty-six million, forty-three thousand, two hundred sixty-five".