1066560161601 has 8 divisors (see below), whose sum is σ = 1551360235104. Its totient is φ = 646400097920.

The previous prime is 1066560161543. The next prime is 1066560161647. The reversal of 1066560161601 is 1061610656601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1066560161601 - 2¹⁹ = 1066559637313 is a prime.

It is a super-2 number, since 2×1066560161601² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1066560161601.

It is not an unprimeable number, because it can be changed into a prime (1066560161101) by changing a digit.

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, 16160002416 + ... + 16160002481.

It is an arithmetic number, because the mean of its divisors is an integer number (193920029388).

Almost surely, 2^{1066560161601} is an apocalyptic number.

1066560161601 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1066560161601 is a deficient number, since it is larger than the sum of its proper divisors (484800073503).

1066560161601 is a wasteful number, since it uses less digits than its factorization.

1066560161601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32320004911.

The product of its (nonzero) digits is 38880, while the sum is 39.

The spelling of 1066560161601 in words is "one trillion, sixty-six billion, five hundred sixty million, one hundred sixty-one thousand, six hundred one".