320744171117202 has 128 divisors (see below), whose sum is σ = 765197943717888. Its totient is φ = 87718684838400.

The previous prime is 320744171117177. The next prime is 320744171117219. The reversal of 320744171117202 is 202711171447023.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 47945302 + ... + 54223982.

It is an arithmetic number, because the mean of its divisors is an integer number (5978108935296).

Almost surely, 2^{320744171117202} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320744171117202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (382598971858944).

320744171117202 is an abundant number, since it is smaller than the sum of its proper divisors (444453772600686).

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

320744171117202 is a wasteful number, since it uses less digits than its factorization.

320744171117202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6279264.

The product of its (nonzero) digits is 131712, while the sum is 42.

The spelling of 320744171117202 in words is "three hundred twenty trillion, seven hundred forty-four billion, one hundred seventy-one million, one hundred seventeen thousand, two hundred two".