108046505581 has 4 divisors (see below), whose sum is σ = 123481720672. Its totient is φ = 92611290492.

The previous prime is 108046505579. The next prime is 108046505603. The reversal of 108046505581 is 185505640801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 108046505581 - 2¹ = 108046505579 is a prime.

It is a super-2 number, since 2×108046505581² (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 (108046505881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7717607535 + ... + 7717607548.

It is an arithmetic number, because the mean of its divisors is an integer number (30870430168).

Almost surely, 2^108046505581 is an apocalyptic number.

It is an amenable number.

108046505581 is a deficient number, since it is larger than the sum of its proper divisors (15435215091).

108046505581 is an equidigital number, since it uses as much as digits as its factorization.

108046505581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15435215090.

The product of its (nonzero) digits is 192000, while the sum is 43.

The spelling of 108046505581 in words is "one hundred eight billion, forty-six million, five hundred five thousand, five hundred eighty-one".