1066000056493 has 4 divisors (see below), whose sum is σ = 1066248140860. Its totient is φ = 1065751972128.

The previous prime is 1066000056487. The next prime is 1066000056599. The reversal of 1066000056493 is 3946500006601.

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 815457762729 + 250542293764 = 903027^2 + 500542^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1066000056493 is a prime.

It is a super-2 number, since 2×1066000056493² (a number of 25 digits) 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 (1066000056893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124035738 + ... + 124044331.

It is an arithmetic number, because the mean of its divisors is an integer number (266562035215).

Almost surely, 2^{1066000056493} is an apocalyptic number.

It is an amenable number.

1066000056493 is a deficient number, since it is larger than the sum of its proper divisors (248084367).

1066000056493 is an equidigital number, since it uses as much as digits as its factorization.

1066000056493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248084366.

The product of its (nonzero) digits is 116640, while the sum is 40.

The spelling of 1066000056493 in words is "one trillion, sixty-six billion, fifty-six thousand, four hundred ninety-three".