1085929166609 has 4 divisors (see below), whose sum is σ = 1241061904704. Its totient is φ = 930796428516.

The previous prime is 1085929166591. The next prime is 1085929166611. The reversal of 1085929166609 is 9066619295801.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1085929166609 - 2²⁸ = 1085660731153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1085929166009) 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, 77566369037 + ... + 77566369050.

It is an arithmetic number, because the mean of its divisors is an integer number (310265476176).

Almost surely, 2^{1085929166609} is an apocalyptic number.

It is an amenable number.

1085929166609 is a deficient number, since it is larger than the sum of its proper divisors (155132738095).

1085929166609 is an equidigital number, since it uses as much as digits as its factorization.

1085929166609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155132738094.

The product of its (nonzero) digits is 12597120, while the sum is 62.

The spelling of 1085929166609 in words is "one trillion, eighty-five billion, nine hundred twenty-nine million, one hundred sixty-six thousand, six hundred nine".