1066166016597 has 48 divisors (see below), whose sum is σ = 1685547864000. Its totient is φ = 644036417280.

The previous prime is 1066166016581. The next prime is 1066166016613. The reversal of 1066166016597 is 7956106616601.

It is a happy number.

1066166016597 is a `hidden beast` number, since 1 + 0 + 6 + 616 + 6 + 0 + 16 + 5 + 9 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (1066166016581) and next prime (1066166016613).

It is not a de Polignac number, because 1066166016597 - 2⁴ = 1066166016581 is a prime.

It is a super-3 number, since 3×1066166016597³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066166017597) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 106515729 + ... + 106525737.

It is an arithmetic number, because the mean of its divisors is an integer number (35115580500).

Almost surely, 2^{1066166016597} is an apocalyptic number.

It is an amenable number.

1066166016597 is a deficient number, since it is larger than the sum of its proper divisors (619381847403).

1066166016597 is a wasteful number, since it uses less digits than its factorization.

1066166016597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13458 (or 13455 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 54.

The spelling of 1066166016597 in words is "one trillion, sixty-six billion, one hundred sixty-six million, sixteen thousand, five hundred ninety-seven".