1066115263 has 8 divisors (see below), whose sum is σ = 1077763232. Its totient is φ = 1054480896.

The previous prime is 1066115257. The next prime is 1066115311. The reversal of 1066115263 is 3625116601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1066115263 - 2¹³ = 1066107071 is a prime.

It is a super-2 number, since 2×1066115263² = 2273203508003118338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066115233) 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 in 7 ways as a sum of consecutive naturals, for example, 275206 + ... + 279052.

It is an arithmetic number, because the mean of its divisors is an integer number (134720404).

Almost surely, 2^1066115263 is an apocalyptic number.

1066115263 is a deficient number, since it is larger than the sum of its proper divisors (11647969).

1066115263 is an equidigital number, since it uses as much as digits as its factorization.

1066115263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6801.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 1066115263 is about 32651.4205357133. The cubic root of 1066115263 is about 1021.5698187488.

The spelling of 1066115263 in words is "one billion, sixty-six million, one hundred fifteen thousand, two hundred sixty-three".