1009196066173 has 4 divisors (see below), whose sum is σ = 1009693454140. Its totient is φ = 1008698678208.

The previous prime is 1009196066117. The next prime is 1009196066191. The reversal of 1009196066173 is 3716606919001.

It is a happy number.

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 923219270649 + 85976795524 = 960843^2 + 293218^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1009196066173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1009196066273) 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, 248690940 + ... + 248694997.

It is an arithmetic number, because the mean of its divisors is an integer number (252423363535).

Almost surely, 2^{1009196066173} is an apocalyptic number.

It is an amenable number.

1009196066173 is a deficient number, since it is larger than the sum of its proper divisors (497387967).

1009196066173 is an equidigital number, since it uses as much as digits as its factorization.

1009196066173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497387966.

The product of its (nonzero) digits is 367416, while the sum is 49.

The spelling of 1009196066173 in words is "one trillion, nine billion, one hundred ninety-six million, sixty-six thousand, one hundred seventy-three".