1066866908507 has 8 divisors (see below), whose sum is σ = 1129644021600.
Its totient is φ = 1004092043904.
The previous prime is 1066866908501. The next prime is 1066866908509. The reversal of 1066866908507 is 7058096686601.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-1066866908507 is a prime.
It is a super-3 number, since 3×10668669085073 (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 1066866908507.
It is not an unprimeable number, because it can be changed into a prime (1066866908501) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 468794 + ... + 1534112.
It is an arithmetic number, because the mean of its divisors is an integer number (141205502700).
Almost surely, 21066866908507 is an apocalyptic number.
1066866908507 is a gapful number since it is divisible by the number (17) formed by its first and last digit.
1066866908507 is a deficient number, since it is larger than the sum of its proper divisors (62777113093).
1066866908507 is a wasteful number, since it uses less digits than its factorization.
1066866908507 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1124245.
The product of its (nonzero) digits is 26127360, while the sum is 62.
The spelling of 1066866908507 in words is "one trillion, sixty-six billion, eight hundred sixty-six million, nine hundred eight thousand, five hundred seven".