1085169343513 has 4 divisors (see below), whose sum is σ = 1085206920228. Its totient is φ = 1085131766800.

The previous prime is 1085169343501. The next prime is 1085169343543. The reversal of 1085169343513 is 3153439615801.

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 691472076304 + 393697267209 = 831548^2 + 627453^2 .

It is a cyclic number.

It is not a de Polignac number, because 1085169343513 - 2⁹ = 1085169343001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1085169343543) 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, 18745006 + ... + 18802807.

It is an arithmetic number, because the mean of its divisors is an integer number (271301730057).

Almost surely, 2^{1085169343513} is an apocalyptic number.

It is an amenable number.

1085169343513 is a deficient number, since it is larger than the sum of its proper divisors (37576715).

1085169343513 is an equidigital number, since it uses as much as digits as its factorization.

1085169343513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37576714.

The product of its (nonzero) digits is 1166400, while the sum is 49.

The spelling of 1085169343513 in words is "one trillion, eighty-five billion, one hundred sixty-nine million, three hundred forty-three thousand, five hundred thirteen".