109855502655 has 16 divisors (see below), whose sum is σ = 175773967584. Its totient is φ = 58587880320.

The previous prime is 109855502651. The next prime is 109855502663. The reversal of 109855502655 is 556205558901.

It is not a de Polignac number, because 109855502655 - 2² = 109855502651 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 109855502598 and 109855502607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109855502651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 549585 + ... + 722325.

It is an arithmetic number, because the mean of its divisors is an integer number (10985872974).

Almost surely, 2^109855502655 is an apocalyptic number.

109855502655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

109855502655 is a deficient number, since it is larger than the sum of its proper divisors (65918464929).

109855502655 is a wasteful number, since it uses less digits than its factorization.

109855502655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215146.

The product of its (nonzero) digits is 2700000, while the sum is 51.

The spelling of 109855502655 in words is "one hundred nine billion, eight hundred fifty-five million, five hundred two thousand, six hundred fifty-five".