12180178045 has 16 divisors (see below), whose sum is σ = 16706131200. Its totient is φ = 8351178624.

The previous prime is 12180178027. The next prime is 12180178061. The reversal of 12180178045 is 54087108121.

It is a cyclic number.

It is not a de Polignac number, because 12180178045 - 2¹⁷ = 12180046973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12180177995 and 12180178013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 458281 + ... + 484129.

It is an arithmetic number, because the mean of its divisors is an integer number (1044133200).

Almost surely, 2^12180178045 is an apocalyptic number.

It is an amenable number.

12180178045 is a deficient number, since it is larger than the sum of its proper divisors (4525953155).

12180178045 is a wasteful number, since it uses less digits than its factorization.

12180178045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39324.

The product of its (nonzero) digits is 17920, while the sum is 37.

The spelling of 12180178045 in words is "twelve billion, one hundred eighty million, one hundred seventy-eight thousand, forty-five".