171940775194055 has 8 divisors (see below), whose sum is σ = 235804491694752. Its totient is φ = 117902245847328.

The previous prime is 171940775194049. The next prime is 171940775194061. The reversal of 171940775194055 is 550491577049171.

It is an interprime number because it is at equal distance from previous prime (171940775194049) and next prime (171940775194061).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 171940775194055 - 2²⁸ = 171940506758599 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 171940775193982 and 171940775194000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2456296788452 + ... + 2456296788521.

It is an arithmetic number, because the mean of its divisors is an integer number (29475561461844).

Almost surely, 2^{171940775194055} is an apocalyptic number.

171940775194055 is a deficient number, since it is larger than the sum of its proper divisors (63863716500697).

171940775194055 is an equidigital number, since it uses as much as digits as its factorization.

171940775194055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4912593576985.

The product of its (nonzero) digits is 55566000, while the sum is 65.

The spelling of 171940775194055 in words is "one hundred seventy-one trillion, nine hundred forty billion, seven hundred seventy-five million, one hundred ninety-four thousand, fifty-five".