10003561155173 has 4 divisors (see below), whose sum is σ = 10004401167180. Its totient is φ = 10002721143168.

The previous prime is 10003561155163. The next prime is 10003561155187. The reversal of 10003561155173 is 37155116530001.

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 3917482023169 + 6086079132004 = 1979263^2 + 2466998^2 .

It is a cyclic number.

It is not a de Polignac number, because 10003561155173 - 2²² = 10003556960869 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10003561155113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419988140 + ... + 420011957.

It is an arithmetic number, because the mean of its divisors is an integer number (2501100291795).

Almost surely, 2^{10003561155173} is an apocalyptic number.

It is an amenable number.

10003561155173 is a deficient number, since it is larger than the sum of its proper divisors (840012007).

10003561155173 is an equidigital number, since it uses as much as digits as its factorization.

10003561155173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840012006.

The product of its (nonzero) digits is 47250, while the sum is 38.

Adding to 10003561155173 its reverse (37155116530001), we get a palindrome (47158677685174).

The spelling of 10003561155173 in words is "ten trillion, three billion, five hundred sixty-one million, one hundred fifty-five thousand, one hundred seventy-three".