1066291495393 has 4 divisors (see below), whose sum is σ = 1071816321988. Its totient is φ = 1060766668800.

The previous prime is 1066291495333. The next prime is 1066291495403. The reversal of 1066291495393 is 3935941926601.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 398031024609 + 668260470784 = 630897^2 + 817472^2 .

It is a cyclic number.

It is not a de Polignac number, because 1066291495393 - 2⁹ = 1066291494881 is a prime.

It is a super-2 number, since 2×1066291495393² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1066291495333) 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 3 ways as a sum of consecutive naturals, for example, 2762413008 + ... + 2762413393.

It is an arithmetic number, because the mean of its divisors is an integer number (267954080497).

Almost surely, 2^{1066291495393} is an apocalyptic number.

It is an amenable number.

1066291495393 is a deficient number, since it is larger than the sum of its proper divisors (5524826595).

1066291495393 is an equidigital number, since it uses as much as digits as its factorization.

1066291495393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5524826594.

The product of its (nonzero) digits is 9447840, while the sum is 58.

The spelling of 1066291495393 in words is "one trillion, sixty-six billion, two hundred ninety-one million, four hundred ninety-five thousand, three hundred ninety-three".