109180045105 has 16 divisors (see below), whose sum is σ = 133193381328. Its totient is φ = 85893120000.

The previous prime is 109180045099. The next prime is 109180045123. The reversal of 109180045105 is 501540081901.

It can be written as a sum of positive squares in 8 ways, for example, as 9328469056 + 99851576049 = 96584^2 + 315993^2 .

It is not a de Polignac number, because 109180045105 - 2⁷ = 109180044977 is a prime.

It is a super-2 number, since 2×109180045105² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1427025 + ... + 1501585.

It is an arithmetic number, because the mean of its divisors is an integer number (8324586333).

Almost surely, 2^109180045105 is an apocalyptic number.

It is an amenable number.

109180045105 is a deficient number, since it is larger than the sum of its proper divisors (24013336223).

109180045105 is an equidigital number, since it uses as much as digits as its factorization.

109180045105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79428.

The product of its (nonzero) digits is 7200, while the sum is 34.

The spelling of 109180045105 in words is "one hundred nine billion, one hundred eighty million, forty-five thousand, one hundred five".