1056535320866 has 4 divisors (see below), whose sum is σ = 1584802981302. Its totient is φ = 528267660432.

The previous prime is 1056535320853. The next prime is 1056535320881. The reversal of 1056535320866 is 6680235356501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 862344390625 + 194190930241 = 928625^2 + 440671^2 .

It is a super-2 number, since 2×1056535320866² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 264133830215 + ... + 264133830218.

Almost surely, 2^{1056535320866} is an apocalyptic number.

1056535320866 is a deficient number, since it is larger than the sum of its proper divisors (528267660436).

1056535320866 is an equidigital number, since it uses as much as digits as its factorization.

1056535320866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528267660435.

The product of its (nonzero) digits is 3888000, while the sum is 50.

The spelling of 1056535320866 in words is "one trillion, fifty-six billion, five hundred thirty-five million, three hundred twenty thousand, eight hundred sixty-six".