1066015166666 has 16 divisors (see below), whose sum is σ = 1607137416000. Its totient is φ = 530302959648.

The previous prime is 1066015166621. The next prime is 1066015166693. The reversal of 1066015166666 is 6666615106601.

It is a happy number.

It is a super-2 number, since 2×1066015166666² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9877625 + ... + 9984963.

It is an arithmetic number, because the mean of its divisors is an integer number (100446088500).

Almost surely, 2^{1066015166666} is an apocalyptic number.

1066015166666 is a deficient number, since it is larger than the sum of its proper divisors (541122249334).

1066015166666 is a wasteful number, since it uses less digits than its factorization.

1066015166666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132493.

The product of its (nonzero) digits is 1399680, while the sum is 50.

The spelling of 1066015166666 in words is "one trillion, sixty-six billion, fifteen million, one hundred sixty-six thousand, six hundred sixty-six".