163553411672 has 80 divisors (see below), whose sum is σ = 358417528560. Its totient is φ = 69963899712.

The previous prime is 163553411633. The next prime is 163553411683. The reversal of 163553411672 is 276114355361.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10691213 + ... + 10706499.

It is an arithmetic number, because the mean of its divisors is an integer number (4480219107).

Almost surely, 2^163553411672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163553411672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179208764280).

163553411672 is an abundant number, since it is smaller than the sum of its proper divisors (194864116888).

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

163553411672 is an equidigital number, since it uses as much as digits as its factorization.

163553411672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15878 (or 15853 counting only the distinct ones).

The product of its digits is 453600, while the sum is 44.

The spelling of 163553411672 in words is "one hundred sixty-three billion, five hundred fifty-three million, four hundred eleven thousand, six hundred seventy-two".