12145514580105 has 16 divisors (see below), whose sum is σ = 19625227521984. Its totient is φ = 6413473044800.

The previous prime is 12145514580083. The next prime is 12145514580109. The reversal of 12145514580105 is 50108541554121.

It is not a de Polignac number, because 12145514580105 - 2⁷ = 12145514579977 is a prime.

It is a super-2 number, since 2×12145514580105² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12145514580109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4008419139 + ... + 4008422168.

It is an arithmetic number, because the mean of its divisors is an integer number (1226576720124).

Almost surely, 2^{12145514580105} is an apocalyptic number.

12145514580105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12145514580105 is a deficient number, since it is larger than the sum of its proper divisors (7479712941879).

12145514580105 is a wasteful number, since it uses less digits than its factorization.

12145514580105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8016841416.

The product of its (nonzero) digits is 160000, while the sum is 42.

The spelling of 12145514580105 in words is "twelve trillion, one hundred forty-five billion, five hundred fourteen million, five hundred eighty thousand, one hundred five".