163401257272 has 32 divisors (see below), whose sum is σ = 335728673280. Its totient is φ = 73940225760.

The previous prime is 163401257267. The next prime is 163401257281. The reversal of 163401257272 is 272752104361.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4143678 + ... + 4182925.

It is an arithmetic number, because the mean of its divisors is an integer number (10491521040).

Almost surely, 2^163401257272 is an apocalyptic number.

It is an amenable number.

163401257272 is an abundant number, since it is smaller than the sum of its proper divisors (172327416008).

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

163401257272 is a wasteful number, since it uses less digits than its factorization.

163401257272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8326843 (or 8326839 counting only the distinct ones).

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

The spelling of 163401257272 in words is "one hundred sixty-three billion, four hundred one million, two hundred fifty-seven thousand, two hundred seventy-two".