1066542705463 has 4 divisors (see below), whose sum is σ = 1066557182328. Its totient is φ = 1066528228600.

The previous prime is 1066542705443. The next prime is 1066542705491. The reversal of 1066542705463 is 3645072456601.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1066542705463 is a prime.

It is a super-2 number, since 2×1066542705463² (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 (1066542705443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7127356 + ... + 7275457.

It is an arithmetic number, because the mean of its divisors is an integer number (266639295582).

Almost surely, 2^{1066542705463} is an apocalyptic number.

1066542705463 is a deficient number, since it is larger than the sum of its proper divisors (14476865).

1066542705463 is an equidigital number, since it uses as much as digits as its factorization.

1066542705463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14476864.

The product of its (nonzero) digits is 3628800, while the sum is 49.

The spelling of 1066542705463 in words is "one trillion, sixty-six billion, five hundred forty-two million, seven hundred five thousand, four hundred sixty-three".