109909116172801 has 24 divisors (see below), whose sum is σ = 124712681496480. Its totient is φ = 96730056635520.

The previous prime is 109909116172799. The next prime is 109909116172937. The reversal of 109909116172801 is 108271611909901.

It is not a de Polignac number, because 109909116172801 - 2¹ = 109909116172799 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109909116172301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92881891 + ... + 94057768.

It is an arithmetic number, because the mean of its divisors is an integer number (5196361729020).

Almost surely, 2^{109909116172801} is an apocalyptic number.

109909116172801 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

109909116172801 is a deficient number, since it is larger than the sum of its proper divisors (14803565323679).

109909116172801 is a wasteful number, since it uses less digits than its factorization.

109909116172801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186939837 (or 186939826 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 55.

The spelling of 109909116172801 in words is "one hundred nine trillion, nine hundred nine billion, one hundred sixteen million, one hundred seventy-two thousand, eight hundred one".