512231616 has 168 divisors, whose sum is σ = 1606330544. Its totient is φ = 155105280.

The previous prime is 512231581. The next prime is 512231651. The reversal of 512231616 is 616132215.

512231616 is a `hidden beast` number, since 5 + 12 + 2 + 31 + 616 = 666.

It is an interprime number because it is at equal distance from previous prime (512231581) and next prime (512231651).

It is a self number, because there is not a number n which added to its sum of digits gives 512231616.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 501186 + ... + 502206.

Almost surely, 2^512231616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 512231616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (803165272).

512231616 is an abundant number, since it is smaller than the sum of its proper divisors (1094098928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

512231616 is a wasteful number, since it uses less digits than its factorization.

512231616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119 (or 1106 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 512231616 is about 22632.5344581644. The cubic root of 512231616 is about 800.1206151474.

The spelling of 512231616 in words is "five hundred twelve million, two hundred thirty-one thousand, six hundred sixteen".