163649095680 has 384 divisors, whose sum is σ = 600511242240. Its totient is φ = 37269995520.

The previous prime is 163649095669. The next prime is 163649095693. The reversal of 163649095680 is 86590946361.

It is a tau number, because it is divible by the number of its divisors (384).

It is a self number, because there is not a number n which added to its sum of digits gives 163649095680.

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 31 ways as a sum of consecutive naturals, for example, 66876217 + ... + 66878663.

It is an arithmetic number, because the mean of its divisors is an integer number (1563831360).

Almost surely, 2^163649095680 is an apocalyptic number.

163649095680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163649095680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300255621120).

163649095680 is an abundant number, since it is smaller than the sum of its proper divisors (436862146560).

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

163649095680 is a wasteful number, since it uses less digits than its factorization.

163649095680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2795 (or 2775 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 57.

The spelling of 163649095680 in words is "one hundred sixty-three billion, six hundred forty-nine million, ninety-five thousand, six hundred eighty".