108216509680 has 40 divisors (see below), whose sum is σ = 266403587472. Its totient is φ = 40740332544.

The previous prime is 108216509657. The next prime is 108216509701. The reversal of 108216509680 is 86905612801.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 108216509680.

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, 39784122 + ... + 39786841.

Almost surely, 2^108216509680 is an apocalyptic number.

108216509680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

108216509680 is an abundant number, since it is smaller than the sum of its proper divisors (158187077792).

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

108216509680 is a wasteful number, since it uses less digits than its factorization.

108216509680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79570993 (or 79570987 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 46.

The spelling of 108216509680 in words is "one hundred eight billion, two hundred sixteen million, five hundred nine thousand, six hundred eighty".