512045256655 has 48 divisors (see below), whose sum is σ = 656533361664. Its totient is φ = 383297699840.

The previous prime is 512045256647. The next prime is 512045256719. The reversal of 512045256655 is 556652540215.

It is not a de Polignac number, because 512045256655 - 2³ = 512045256647 is a prime.

It is a super-3 number, since 3×512045256655³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 195361245 + ... + 195363865.

It is an arithmetic number, because the mean of its divisors is an integer number (13677778368).

Almost surely, 2^512045256655 is an apocalyptic number.

512045256655 is a deficient number, since it is larger than the sum of its proper divisors (144488105009).

512045256655 is a wasteful number, since it uses less digits than its factorization.

512045256655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3396 (or 3379 counting only the distinct ones).

The product of its (nonzero) digits is 1800000, while the sum is 46.

The spelling of 512045256655 in words is "five hundred twelve billion, forty-five million, two hundred fifty-six thousand, six hundred fifty-five".