1066895384697 has 24 divisors (see below), whose sum is σ = 1632009904200. Its totient is φ = 669306585600.

The previous prime is 1066895384677. The next prime is 1066895384759. The reversal of 1066895384697 is 7964835986601.

1066895384697 is a `hidden beast` number, since 1 + 0 + 6 + 6 + 89 + 538 + 4 + 6 + 9 + 7 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 404984595456 + 661910789241 = 636384^2 + 813579^2 .

It is not a de Polignac number, because 1066895384697 - 2⁸ = 1066895384441 is a prime.

It is a super-2 number, since 2×1066895384697² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1066895384677) 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 23 ways as a sum of consecutive naturals, for example, 260679 + ... + 1483827.

It is an arithmetic number, because the mean of its divisors is an integer number (68000412675).

Almost surely, 2^{1066895384697} is an apocalyptic number.

1066895384697 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1066895384697 is a deficient number, since it is larger than the sum of its proper divisors (565114519503).

1066895384697 is a wasteful number, since it uses less digits than its factorization.

1066895384697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228873 (or 1228870 counting only the distinct ones).

The product of its (nonzero) digits is 470292480, while the sum is 72.

The spelling of 1066895384697 in words is "one trillion, sixty-six billion, eight hundred ninety-five million, three hundred eighty-four thousand, six hundred ninety-seven".