565128016 has 40 divisors (see below), whose sum is σ = 1156584704. Its totient is φ = 267079680.

The previous prime is 565127987. The next prime is 565128023. The reversal of 565128016 is 610821565.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8080 + ... + 34576.

Almost surely, 2^565128016 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 565128016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (578292352).

565128016 is an abundant number, since it is smaller than the sum of its proper divisors (591456688).

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

565128016 is a wasteful number, since it uses less digits than its factorization.

565128016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26579 (or 26573 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 565128016 is about 23772.4213322918. The cubic root of 565128016 is about 826.7653735183.

The spelling of 565128016 in words is "five hundred sixty-five million, one hundred twenty-eight thousand, sixteen".