1066551115012 has 12 divisors (see below), whose sum is σ = 1866474497356. Its totient is φ = 533272687200.

The previous prime is 1066551115001. The next prime is 1066551115013. The reversal of 1066551115012 is 2105111556601.

1066551115012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 7578398916 + 1058972716096 = 87054^2 + 1029064^2 .

It is a super-2 number, since 2×1066551115012² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1066551115013) 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, 269278 + ... + 1485130.

Almost surely, 2^{1066551115012} is an apocalyptic number.

It is an amenable number.

1066551115012 is a deficient number, since it is larger than the sum of its proper divisors (799923382344).

1066551115012 is a wasteful number, since it uses less digits than its factorization.

1066551115012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435158 (or 1435156 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 34.

The spelling of 1066551115012 in words is "one trillion, sixty-six billion, five hundred fifty-one million, one hundred fifteen thousand, twelve".