512121453121216 has 28 divisors (see below), whose sum is σ = 1016244132628320. Its totient is φ = 256059939388160.

The previous prime is 512121453121189. The next prime is 512121453121321. The reversal of 512121453121216 is 612121354121215.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8966790 + ... + 33236218.

Almost surely, 2^{512121453121216} is an apocalyptic number.

It is an amenable number.

512121453121216 is a deficient number, since it is larger than the sum of its proper divisors (504122679507104).

512121453121216 is a wasteful number, since it uses less digits than its factorization.

512121453121216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24599152 (or 24599142 counting only the distinct ones).

The product of its digits is 28800, while the sum is 37.

Subtracting 512121453121216 from its reverse (612121354121215), we obtain a palindrome (99999900999999).

The spelling of 512121453121216 in words is "five hundred twelve trillion, one hundred twenty-one billion, four hundred fifty-three million, one hundred twenty-one thousand, two hundred sixteen".