516064642445 has 12 divisors (see below), whose sum is σ = 680693529180. Its totient is φ = 375319739520.

The previous prime is 516064642439. The next prime is 516064642451. The reversal of 516064642445 is 544246460615.

It is an interprime number because it is at equal distance from previous prime (516064642439) and next prime (516064642451).

It can be written as a sum of positive squares in 2 ways, for example, as 53472862564 + 462591779881 = 231242^2 + 680141^2 .

It is not a de Polignac number, because 516064642445 - 2⁸ = 516064642189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 516064642445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 426499100 + ... + 426500309.

It is an arithmetic number, because the mean of its divisors is an integer number (56724460765).

Almost surely, 2^516064642445 is an apocalyptic number.

516064642445 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

516064642445 is a deficient number, since it is larger than the sum of its proper divisors (164628886735).

516064642445 is a wasteful number, since it uses less digits than its factorization.

516064642445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852999436 (or 852999425 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 47.

The spelling of 516064642445 in words is "five hundred sixteen billion, sixty-four million, six hundred forty-two thousand, four hundred forty-five".