1066676565001 has 4 divisors (see below), whose sum is σ = 1069363408132. Its totient is φ = 1063989721872.

The previous prime is 1066676564977. The next prime is 1066676565023. The reversal of 1066676565001 is 1005656766601.

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 606450005001 + 460226560000 = 778749^2 + 678400^2 .

It is a cyclic number.

It is not a de Polignac number, because 1066676565001 - 2¹¹ = 1066676562953 is a prime.

It is a super-2 number, since 2×1066676565001² (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 (1066676565401) 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, 1343420970 + ... + 1343421763.

It is an arithmetic number, because the mean of its divisors is an integer number (267340852033).

Almost surely, 2^{1066676565001} is an apocalyptic number.

It is an amenable number.

1066676565001 is a deficient number, since it is larger than the sum of its proper divisors (2686843131).

1066676565001 is an equidigital number, since it uses as much as digits as its factorization.

1066676565001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2686843130.

The product of its (nonzero) digits is 1360800, while the sum is 49.

The spelling of 1066676565001 in words is "one trillion, sixty-six billion, six hundred seventy-six million, five hundred sixty-five thousand, one".