170454538420656 has 160 divisors (see below), whose sum is σ = 537639872655360. Its totient is φ = 45449442517248.

The previous prime is 170454538420651. The next prime is 170454538420667. The reversal of 170454538420656 is 656024835454071.

It is a self number, because there is not a number n which added to its sum of digits gives 170454538420656.

It is not an unprimeable number, because it can be changed into a prime (170454538420651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 198828036 + ... + 199683491.

It is an arithmetic number, because the mean of its divisors is an integer number (3360249204096).

Almost surely, 2^{170454538420656} is an apocalyptic number.

170454538420656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

170454538420656 is an abundant number, since it is smaller than the sum of its proper divisors (367185334234704).

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

170454538420656 is a wasteful number, since it uses less digits than its factorization.

170454538420656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398511631 (or 398511625 counting only the distinct ones).

The product of its (nonzero) digits is 96768000, while the sum is 60.

The spelling of 170454538420656 in words is "one hundred seventy trillion, four hundred fifty-four billion, five hundred thirty-eight million, four hundred twenty thousand, six hundred fifty-six".