108309785966 has 4 divisors (see below), whose sum is σ = 162464678952. Its totient is φ = 54154892982.

The previous prime is 108309785879. The next prime is 108309785999. The reversal of 108309785966 is 669587903801.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 108309785899 and 108309785908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27077446490 + ... + 27077446493.

It is an arithmetic number, because the mean of its divisors is an integer number (40616169738).

Almost surely, 2^108309785966 is an apocalyptic number.

108309785966 is a deficient number, since it is larger than the sum of its proper divisors (54154892986).

108309785966 is an equidigital number, since it uses as much as digits as its factorization.

108309785966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54154892985.

The product of its (nonzero) digits is 19595520, while the sum is 62.

The spelling of 108309785966 in words is "one hundred eight billion, three hundred nine million, seven hundred eighty-five thousand, nine hundred sixty-six".