12020454453146 has 16 divisors (see below), whose sum is σ = 19037005323360. Its totient is φ = 5676697358640.

The previous prime is 12020454453143. The next prime is 12020454453167. The reversal of 12020454453146 is 64135445402021.

It is not an unprimeable number, because it can be changed into a prime (12020454453143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 477823901 + ... + 477849056.

It is an arithmetic number, because the mean of its divisors is an integer number (1189812832710).

Almost surely, 2^{12020454453146} is an apocalyptic number.

12020454453146 is a deficient number, since it is larger than the sum of its proper divisors (7016550870214).

12020454453146 is a wasteful number, since it uses less digits than its factorization.

12020454453146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955673309.

The product of its (nonzero) digits is 460800, while the sum is 41.

Adding to 12020454453146 its reverse (64135445402021), we get a palindrome (76155899855167).

The spelling of 12020454453146 in words is "twelve trillion, twenty billion, four hundred fifty-four million, four hundred fifty-three thousand, one hundred forty-six".