1000334354561 has 4 divisors (see below), whose sum is σ = 1011574066500. Its totient is φ = 989094642624.

The previous prime is 1000334354543. The next prime is 1000334354599. The reversal of 1000334354561 is 1654534330001.

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

It can be written as a sum of positive squares in 2 ways, for example, as 135759823936 + 864574530625 = 368456^2 + 929825^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000334354561 - 2⁶ = 1000334354497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000334351561) 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 3 ways as a sum of consecutive naturals, for example, 5619855836 + ... + 5619856013.

It is an arithmetic number, because the mean of its divisors is an integer number (252893516625).

Almost surely, 2^{1000334354561} is an apocalyptic number.

It is an amenable number.

1000334354561 is a deficient number, since it is larger than the sum of its proper divisors (11239711939).

1000334354561 is an equidigital number, since it uses as much as digits as its factorization.

1000334354561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11239711938.

The product of its (nonzero) digits is 64800, while the sum is 35.

Adding to 1000334354561 its reverse (1654534330001), we get a palindrome (2654868684562).

The spelling of 1000334354561 in words is "one trillion, three hundred thirty-four million, three hundred fifty-four thousand, five hundred sixty-one".