109955554511 has 12 divisors (see below), whose sum is σ = 122316396216. Its totient is φ = 98755253520.

The previous prime is 109955554487. The next prime is 109955554547. The reversal of 109955554511 is 115455559901.

It is a de Polignac number, because none of the positive numbers 2^k-109955554511 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 109955554511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109955554591) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5464196 + ... + 5484281.

It is an arithmetic number, because the mean of its divisors is an integer number (10193033018).

Almost surely, 2^109955554511 is an apocalyptic number.

109955554511 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

109955554511 is a deficient number, since it is larger than the sum of its proper divisors (12360841705).

109955554511 is a wasteful number, since it uses less digits than its factorization.

109955554511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10948582 (or 10948571 counting only the distinct ones).

The product of its (nonzero) digits is 1012500, while the sum is 50.

It can be divided in two parts, 109955 and 554511, that added together give a palindrome (664466).

The spelling of 109955554511 in words is "one hundred nine billion, nine hundred fifty-five million, five hundred fifty-four thousand, five hundred eleven".