1078165345085 has 4 divisors (see below), whose sum is σ = 1293798414108. Its totient is φ = 862532276064.

The previous prime is 1078165345051. The next prime is 1078165345087. The reversal of 1078165345085 is 5805435618701.

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 252122485924 + 826042859161 = 502118^2 + 908869^2 .

It is a cyclic number.

It is not a de Polignac number, because 1078165345085 - 2¹⁴ = 1078165328701 is a prime.

It is a super-2 number, since 2×1078165345085² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1078165345087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107816534504 + ... + 107816534513.

It is an arithmetic number, because the mean of its divisors is an integer number (323449603527).

Almost surely, 2^{1078165345085} is an apocalyptic number.

It is an amenable number.

1078165345085 is a deficient number, since it is larger than the sum of its proper divisors (215633069023).

1078165345085 is an equidigital number, since it uses as much as digits as its factorization.

1078165345085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215633069022.

The product of its (nonzero) digits is 4032000, while the sum is 53.

The spelling of 1078165345085 in words is "one trillion, seventy-eight billion, one hundred sixty-five million, three hundred forty-five thousand, eighty-five".