177243040061 has 2 divisors, whose sum is σ = 177243040062. Its totient is φ = 177243040060.

The previous prime is 177243040033. The next prime is 177243040063. The reversal of 177243040061 is 160040342771.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125489520025 + 51753520036 = 354245^2 + 227494^2 .

It is an emirp because it is prime and its reverse (160040342771) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 177243040061 - 2⁶ = 177243039997 is a prime.

Together with 177243040063, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (177243040063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 88621520030 + 88621520031.

It is an arithmetic number, because the mean of its divisors is an integer number (88621520031).

Almost surely, 2^177243040061 is an apocalyptic number.

It is an amenable number.

177243040061 is a deficient number, since it is larger than the sum of its proper divisors (1).

177243040061 is an equidigital number, since it uses as much as digits as its factorization.

177243040061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 35.

The spelling of 177243040061 in words is "one hundred seventy-seven billion, two hundred forty-three million, forty thousand, sixty-one".