1066660101016 has 8 divisors (see below), whose sum is σ = 1999987689420. Its totient is φ = 533330050504.

The previous prime is 1066660101007. The next prime is 1066660101019. The reversal of 1066660101016 is 6101010666601.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1066660101016² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066660101019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66666256306 + ... + 66666256321.

Almost surely, 2^{1066660101016} is an apocalyptic number.

It is an amenable number.

1066660101016 is a deficient number, since it is larger than the sum of its proper divisors (933327588404).

1066660101016 is a wasteful number, since it uses less digits than its factorization.

1066660101016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133332512633 (or 133332512629 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

Adding to 1066660101016 its reverse (6101010666601), we get a palindrome (7167670767617).

The spelling of 1066660101016 in words is "one trillion, sixty-six billion, six hundred sixty million, one hundred one thousand, sixteen".