103809982640 has 160 divisors (see below), whose sum is σ = 297275556480. Its totient is φ = 32829898752.

The previous prime is 103809982607. The next prime is 103809982651. The reversal of 103809982640 is 46289908301.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11621696 + ... + 11630624.

It is an arithmetic number, because the mean of its divisors is an integer number (1857972228).

Almost surely, 2^103809982640 is an apocalyptic number.

103809982640 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 103809982640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148637778240).

103809982640 is an abundant number, since it is smaller than the sum of its proper divisors (193465573840).

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

103809982640 is a wasteful number, since it uses less digits than its factorization.

103809982640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10559 (or 10553 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 50.

The spelling of 103809982640 in words is "one hundred three billion, eight hundred nine million, nine hundred eighty-two thousand, six hundred forty".