1066750514667 has 64 divisors (see below), whose sum is σ = 1658530805760. Its totient is φ = 676850971392.

The previous prime is 1066750514647. The next prime is 1066750514693. The reversal of 1066750514667 is 7664150576601.

It is a happy number.

1066750514667 is a `hidden beast` number, since 1 + 0 + 6 + 67 + 5 + 0 + 514 + 6 + 67 = 666.

It is not a de Polignac number, because 1066750514667 - 2¹⁰ = 1066750513643 is a prime.

It is a super-2 number, since 2×1066750514667² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1066750514647) 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 in 63 ways as a sum of consecutive naturals, for example, 103432303 + ... + 103442615.

It is an arithmetic number, because the mean of its divisors is an integer number (25914543840).

Almost surely, 2^{1066750514667} is an apocalyptic number.

1066750514667 is a deficient number, since it is larger than the sum of its proper divisors (591780291093).

1066750514667 is a wasteful number, since it uses less digits than its factorization.

1066750514667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12609 (or 12603 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 54.

The spelling of 1066750514667 in words is "one trillion, sixty-six billion, seven hundred fifty million, five hundred fourteen thousand, six hundred sixty-seven".