171355754101242 has 32 divisors (see below), whose sum is σ = 345915789484032. Its totient is φ = 56584542048944.

The previous prime is 171355754101229. The next prime is 171355754101327. The reversal of 171355754101242 is 242101457553171.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 171355754101191 and 171355754101200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267370183 + ... + 268010309.

It is an arithmetic number, because the mean of its divisors is an integer number (10809868421376).

Almost surely, 2^{171355754101242} is an apocalyptic number.

171355754101242 is an abundant number, since it is smaller than the sum of its proper divisors (174560035382790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

171355754101242 is a wasteful number, since it uses less digits than its factorization.

171355754101242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057202.

The product of its (nonzero) digits is 1176000, while the sum is 48.

The spelling of 171355754101242 in words is "one hundred seventy-one trillion, three hundred fifty-five billion, seven hundred fifty-four million, one hundred one thousand, two hundred forty-two".