1056328656899 has 2 divisors, whose sum is σ = 1056328656900. Its totient is φ = 1056328656898.

The previous prime is 1056328656811. The next prime is 1056328656913. The reversal of 1056328656899 is 9986568236501.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1056328656899 is a prime.

It is a super-2 number, since 2×1056328656899² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1056328356899) 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 as a sum of consecutive naturals, namely, 528164328449 + 528164328450.

It is an arithmetic number, because the mean of its divisors is an integer number (528164328450).

Almost surely, 2^{1056328656899} is an apocalyptic number.

1056328656899 is a deficient number, since it is larger than the sum of its proper divisors (1).

1056328656899 is an equidigital number, since it uses as much as digits as its factorization.

1056328656899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 167961600, while the sum is 68.

The spelling of 1056328656899 in words is "one trillion, fifty-six billion, three hundred twenty-eight million, six hundred fifty-six thousand, eight hundred ninety-nine".