109855741665 has 16 divisors (see below), whose sum is σ = 177324668928. Its totient is φ = 58071234816.

The previous prime is 109855741649. The next prime is 109855741757. The reversal of 109855741665 is 566147558901.

It is not a de Polignac number, because 109855741665 - 2⁴ = 109855741649 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32404129 + ... + 32407518.

It is an arithmetic number, because the mean of its divisors is an integer number (11082791808).

Almost surely, 2^109855741665 is an apocalyptic number.

109855741665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

109855741665 is a deficient number, since it is larger than the sum of its proper divisors (67468927263).

109855741665 is a wasteful number, since it uses less digits than its factorization.

109855741665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64811768.

The product of its (nonzero) digits is 9072000, while the sum is 57.

The spelling of 109855741665 in words is "one hundred nine billion, eight hundred fifty-five million, seven hundred forty-one thousand, six hundred sixty-five".