170205712012 has 24 divisors (see below), whose sum is σ = 340942523040. Its totient is φ = 72831498240.

The previous prime is 170205711997. The next prime is 170205712021. The reversal of 170205712012 is 210217502071.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 4723687 + ... + 4759582.

It is an arithmetic number, because the mean of its divisors is an integer number (14205938460).

Almost surely, 2^170205712012 is an apocalyptic number.

It is an amenable number.

170205712012 is an abundant number, since it is smaller than the sum of its proper divisors (170736811028).

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

170205712012 is a wasteful number, since it uses less digits than its factorization.

170205712012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9483921 (or 9483919 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 28.

The spelling of 170205712012 in words is "one hundred seventy billion, two hundred five million, seven hundred twelve thousand, twelve".