1098560365057 has 4 divisors (see below), whose sum is σ = 1098575497300. Its totient is φ = 1098545232816.

The previous prime is 1098560365051. The next prime is 1098560365073. The reversal of 1098560365057 is 7505630658901.

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 819877731841 + 278682633216 = 905471^2 + 527904^2 .

It is a cyclic number.

It is not a de Polignac number, because 1098560365057 - 2¹¹ = 1098560363009 is a prime.

It is a super-2 number, since 2×1098560365057² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1098560364989 and 1098560365007.

It is not an unprimeable number, because it can be changed into a prime (1098560365051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7456698 + ... + 7602595.

It is an arithmetic number, because the mean of its divisors is an integer number (274643874325).

Almost surely, 2^{1098560365057} is an apocalyptic number.

It is an amenable number.

1098560365057 is a deficient number, since it is larger than the sum of its proper divisors (15132243).

1098560365057 is an equidigital number, since it uses as much as digits as its factorization.

1098560365057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15132242.

The product of its (nonzero) digits is 6804000, while the sum is 55.

The spelling of 1098560365057 in words is "one trillion, ninety-eight billion, five hundred sixty million, three hundred sixty-five thousand, fifty-seven".