170105012815442 has 8 divisors (see below), whose sum is σ = 255159943216716. Its totient is φ = 85051698409872.

The previous prime is 170105012815433. The next prime is 170105012815457. The reversal of 170105012815442 is 244518210501071.

It can be written as a sum of positive squares in 2 ways, for example, as 168031876469521 + 2073136345921 = 12962711^2 + 1439839^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 170105012815442.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 403735733 + ... + 404156840.

Almost surely, 2^{170105012815442} is an apocalyptic number.

170105012815442 is a deficient number, since it is larger than the sum of its proper divisors (85054930401274).

170105012815442 is a wasteful number, since it uses less digits than its factorization.

170105012815442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807997852.

The product of its (nonzero) digits is 89600, while the sum is 41.

The spelling of 170105012815442 in words is "one hundred seventy trillion, one hundred five billion, twelve million, eight hundred fifteen thousand, four hundred forty-two".