512665416 has 64 divisors (see below), whose sum is σ = 1428019200. Its totient is φ = 170414784.

The previous prime is 512665409. The next prime is 512665421. The reversal of 512665416 is 614566215.

512665416 is a `hidden beast` number, since 51 + 2 + 66 + 541 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79630 + ... + 85826.

It is an arithmetic number, because the mean of its divisors is an integer number (22312800).

Almost surely, 2^512665416 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 512665416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (714009600).

512665416 is an abundant number, since it is smaller than the sum of its proper divisors (915353784).

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

512665416 is a wasteful number, since it uses less digits than its factorization.

512665416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6595 (or 6585 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 512665416 is about 22642.1159788567. The cubic root of 512665416 is about 800.3464208025.

The spelling of 512665416 in words is "five hundred twelve million, six hundred sixty-five thousand, four hundred sixteen".