1066056501685 has 16 divisors (see below), whose sum is σ = 1462066125696. Its totient is φ = 730987282368.

The previous prime is 1066056501683. The next prime is 1066056501707. The reversal of 1066056501685 is 5861056506601.

It is not a de Polignac number, because 1066056501685 - 2¹ = 1066056501683 is a prime.

It is a super-2 number, since 2×1066056501685² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066056501683) 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 15 ways as a sum of consecutive naturals, for example, 697567 + ... + 1618243.

It is an arithmetic number, because the mean of its divisors is an integer number (91379132856).

Almost surely, 2^{1066056501685} is an apocalyptic number.

It is an amenable number.

1066056501685 is a deficient number, since it is larger than the sum of its proper divisors (396009624011).

1066056501685 is an equidigital number, since it uses as much as digits as its factorization.

1066056501685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953772.

The product of its (nonzero) digits is 1296000, while the sum is 49.

The spelling of 1066056501685 in words is "one trillion, sixty-six billion, fifty-six million, five hundred one thousand, six hundred eighty-five".