170161256448 has 72 divisors (see below), whose sum is σ = 491457002400. Its totient is φ = 56720412672.

The previous prime is 170161256443. The next prime is 170161256453. The reversal of 170161256448 is 844652161071.

170161256448 is a `hidden beast` number, since 1 + 70 + 1 + 6 + 12 + 564 + 4 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (170161256443) and next prime (170161256453).

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (170161256443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4597488 + ... + 4634351.

It is an arithmetic number, because the mean of its divisors is an integer number (6825791700).

Almost surely, 2^170161256448 is an apocalyptic number.

170161256448 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

170161256448 is an abundant number, since it is smaller than the sum of its proper divisors (321295745952).

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

170161256448 is an equidigital number, since it uses as much as digits as its factorization.

170161256448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9231867 (or 9231844 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 170161256448 in words is "one hundred seventy billion, one hundred sixty-one million, two hundred fifty-six thousand, four hundred forty-eight".