225177035061161 has 4 divisors (see below), whose sum is σ = 225177071456772. Its totient is φ = 225176998665552.

The previous prime is 225177035061149. The next prime is 225177035061163. The reversal of 225177035061161 is 161160530771522.

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 117498662502400 + 107678372558761 = 10839680^2 + 10376819^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225177035061161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225177035061163) 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, 6343310 + ... + 22149303.

It is an arithmetic number, because the mean of its divisors is an integer number (56294267864193).

Almost surely, 2^{225177035061161} is an apocalyptic number.

It is an amenable number.

225177035061161 is a deficient number, since it is larger than the sum of its proper divisors (36395611).

225177035061161 is an equidigital number, since it uses as much as digits as its factorization.

225177035061161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36395610.

The product of its (nonzero) digits is 529200, while the sum is 47.

The spelling of 225177035061161 in words is "two hundred twenty-five trillion, one hundred seventy-seven billion, thirty-five million, sixty-one thousand, one hundred sixty-one".