171220274053312 has 56 divisors (see below), whose sum is σ = 370660089646080. Its totient is φ = 77825904380160.

The previous prime is 171220274053259. The next prime is 171220274053337. The reversal of 171220274053312 is 213350472022171.

It is a happy 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, 34813489 + ... + 39426127.

Almost surely, 2^{171220274053312} is an apocalyptic number.

It is an amenable number.

171220274053312 is an abundant number, since it is smaller than the sum of its proper divisors (199439815592768).

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

171220274053312 is a wasteful number, since it uses less digits than its factorization.

171220274053312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4665389 (or 4665379 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 171220274053312 in words is "one hundred seventy-one trillion, two hundred twenty billion, two hundred seventy-four million, fifty-three thousand, three hundred twelve".