109905582140 has 24 divisors (see below), whose sum is σ = 238760403840. Its totient is φ = 42446293568.

The previous prime is 109905582139. The next prime is 109905582209. The reversal of 109905582140 is 41285509901.

It is a junction number, because it is equal to n+sod(n) for n = 109905582091 and 109905582100.

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, 94745612 + ... + 94746771.

It is an arithmetic number, because the mean of its divisors is an integer number (9948350160).

Almost surely, 2^109905582140 is an apocalyptic number.

109905582140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109905582140 is an abundant number, since it is smaller than the sum of its proper divisors (128854821700).

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

109905582140 is a wasteful number, since it uses less digits than its factorization.

109905582140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189492421 (or 189492419 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 44.

The spelling of 109905582140 in words is "one hundred nine billion, nine hundred five million, five hundred eighty-two thousand, one hundred forty".