1066404680481 has 32 divisors (see below), whose sum is σ = 1696742691840. Its totient is φ = 582862464576.

The previous prime is 1066404680449. The next prime is 1066404680501. The reversal of 1066404680481 is 1840864046601.

It is not a de Polignac number, because 1066404680481 - 2⁵ = 1066404680449 is a prime.

It is a super-2 number, since 2×1066404680481² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1066404680481.

It is not an unprimeable number, because it can be changed into a prime (1066404681481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8117431 + ... + 8247756.

It is an arithmetic number, because the mean of its divisors is an integer number (53023209120).

Almost surely, 2^{1066404680481} is an apocalyptic number.

It is an amenable number.

1066404680481 is a deficient number, since it is larger than the sum of its proper divisors (630338011359).

1066404680481 is a wasteful number, since it uses less digits than its factorization.

1066404680481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16365333.

The product of its (nonzero) digits is 884736, while the sum is 48.

The spelling of 1066404680481 in words is "one trillion, sixty-six billion, four hundred four million, six hundred eighty thousand, four hundred eighty-one".