1066664405652 has 24 divisors (see below), whose sum is σ = 2529684985632. Its totient is φ = 349726034400.

The previous prime is 1066664405579. The next prime is 1066664405671. The reversal of 1066664405652 is 2565044666601.

It is a super-2 number, since 2×1066664405652² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1066664405595 and 1066664405604.

It is a congruent number.

It is an unprimeable number.

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, 728595174 + ... + 728596637.

It is an arithmetic number, because the mean of its divisors is an integer number (105403541068).

Almost surely, 2^{1066664405652} is an apocalyptic number.

1066664405652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1066664405652 is an abundant number, since it is smaller than the sum of its proper divisors (1463020579980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1066664405652 is a wasteful number, since it uses less digits than its factorization.

1066664405652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457191879 (or 1457191877 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 51.

The spelling of 1066664405652 in words is "one trillion, sixty-six billion, six hundred sixty-four million, four hundred five thousand, six hundred fifty-two".