110505049991 has 8 divisors (see below), whose sum is σ = 128432019840. Its totient is φ = 93113213688.

The previous prime is 110505049981. The next prime is 110505050009. The reversal of 110505049991 is 199940505011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 110505049991 - 2¹⁸ = 110504787847 is a prime.

It is a super-2 number, since 2×110505049991² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110505049951) 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 7 ways as a sum of consecutive naturals, for example, 133782941 + ... + 133783766.

It is an arithmetic number, because the mean of its divisors is an integer number (16054002480).

Almost surely, 2^110505049991 is an apocalyptic number.

110505049991 is a deficient number, since it is larger than the sum of its proper divisors (17926969849).

110505049991 is an equidigital number, since it uses as much as digits as its factorization.

110505049991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267566773.

The product of its (nonzero) digits is 72900, while the sum is 44.

The spelling of 110505049991 in words is "one hundred ten billion, five hundred five million, forty-nine thousand, nine hundred ninety-one".