512016442064551 has 4 divisors (see below), whose sum is σ = 512019762451704. Its totient is φ = 512013121677400.

The previous prime is 512016442064531. The next prime is 512016442064651. The reversal of 512016442064551 is 155460244610215.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 512016442064551 - 2²⁵ = 512016408510119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512016442064531) 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 3 ways as a sum of consecutive naturals, for example, 1659962260 + ... + 1660270681.

It is an arithmetic number, because the mean of its divisors is an integer number (128004940612926).

Almost surely, 2^{512016442064551} is an apocalyptic number.

512016442064551 is a deficient number, since it is larger than the sum of its proper divisors (3320387153).

512016442064551 is a wasteful number, since it uses less digits than its factorization.

512016442064551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3320387152.

The product of its (nonzero) digits is 1152000, while the sum is 46.

Adding to 512016442064551 its reverse (155460244610215), we get a palindrome (667476686674766).

The spelling of 512016442064551 in words is "five hundred twelve trillion, sixteen billion, four hundred forty-two million, sixty-four thousand, five hundred fifty-one".