109075499820 has 144 divisors (see below), whose sum is σ = 398029981440. Its totient is φ = 23619351168.

The previous prime is 109075499809. The next prime is 109075499873. The reversal of 109075499820 is 28994570901.

109075499820 is a `hidden beast` number, since 1 + 0 + 9 + 0 + 7 + 549 + 98 + 2 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2254162 + ... + 2302041.

Almost surely, 2^109075499820 is an apocalyptic number.

109075499820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109075499820 is an abundant number, since it is smaller than the sum of its proper divisors (288954481620).

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

109075499820 is a wasteful number, since it uses less digits than its factorization.

109075499820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4556244 (or 4556239 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 54.

The spelling of 109075499820 in words is "one hundred nine billion, seventy-five million, four hundred ninety-nine thousand, eight hundred twenty".