163712211672 has 32 divisors (see below), whose sum is σ = 409326036480. Its totient is φ = 54564669600.

The previous prime is 163712211671. The next prime is 163712211757. The reversal of 163712211672 is 276112217361.

It is a self number, because there is not a number n which added to its sum of digits gives 163712211672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163712211671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156204 + ... + 593147.

It is an arithmetic number, because the mean of its divisors is an integer number (12791438640).

Almost surely, 2^163712211672 is an apocalyptic number.

163712211672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

163712211672 is an abundant number, since it is smaller than the sum of its proper divisors (245613824808).

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

163712211672 is a wasteful number, since it uses less digits than its factorization.

163712211672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758463 (or 758459 counting only the distinct ones).

The product of its digits is 42336, while the sum is 39.

The spelling of 163712211672 in words is "one hundred sixty-three billion, seven hundred twelve million, two hundred eleven thousand, six hundred seventy-two".