512115660 has 216 divisors, whose sum is σ = 1866324096. Its totient is φ = 113218560.

The previous prime is 512115623. The next prime is 512115739. The reversal of 512115660 is 66511215.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 272484 + ... + 274356.

Almost surely, 2^512115660 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 512115660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (933162048).

512115660 is an abundant number, since it is smaller than the sum of its proper divisors (1354208436).

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

512115660 is a wasteful number, since it uses less digits than its factorization.

512115660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1933 (or 1921 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 512115660 is about 22629.9726027231. The cubic root of 512115660 is about 800.0602350479.

Adding to 512115660 its reverse (66511215), we get a palindrome (578626875).

The spelling of 512115660 in words is "five hundred twelve million, one hundred fifteen thousand, six hundred sixty".