2145421453316 has 12 divisors (see below), whose sum is σ = 3789576212688. Its totient is φ = 1062685392552.

The previous prime is 2145421453313. The next prime is 2145421453349. The reversal of 2145421453316 is 6133541245412.

It is not an unprimeable number, because it can be changed into a prime (2145421453313) 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, 2506333046 + ... + 2506333901.

It is an arithmetic number, because the mean of its divisors is an integer number (315798017724).

Almost surely, 2^{2145421453316} is an apocalyptic number.

It is an amenable number.

2145421453316 is a deficient number, since it is larger than the sum of its proper divisors (1644154759372).

2145421453316 is a wasteful number, since it uses less digits than its factorization.

2145421453316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5012667058 (or 5012667056 counting only the distinct ones).

The product of its digits is 345600, while the sum is 41.

Adding to 2145421453316 its reverse (6133541245412), we get a palindrome (8278962698728).

The spelling of 2145421453316 in words is "two trillion, one hundred forty-five billion, four hundred twenty-one million, four hundred fifty-three thousand, three hundred sixteen".