1430804255561 has 4 divisors (see below), whose sum is σ = 1430937327252. Its totient is φ = 1430671183872.

The previous prime is 1430804255557. The next prime is 1430804255579. The reversal of 1430804255561 is 1655524080341.

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 1063901479936 + 366902775625 = 1031456^2 + 605725^2 .

It is a cyclic number.

It is not a de Polignac number, because 1430804255561 - 2² = 1430804255557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1430804755561) 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, 66519716 + ... + 66541221.

It is an arithmetic number, because the mean of its divisors is an integer number (357734331813).

Almost surely, 2^{1430804255561} is an apocalyptic number.

It is an amenable number.

1430804255561 is a deficient number, since it is larger than the sum of its proper divisors (133071691).

1430804255561 is a wasteful number, since it uses less digits than its factorization.

1430804255561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133071690.

The product of its (nonzero) digits is 576000, while the sum is 44.

The spelling of 1430804255561 in words is "one trillion, four hundred thirty billion, eight hundred four million, two hundred fifty-five thousand, five hundred sixty-one".