566451840 has 192 divisors, whose sum is σ = 1871765280. Its totient is φ = 145704960.

The previous prime is 566451817. The next prime is 566451841. The reversal of 566451840 is 48154665.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (192).

It is not an unprimeable number, because it can be changed into a prime (566451841) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1844967 + ... + 1845273.

Almost surely, 2^566451840 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 566451840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (935882640).

566451840 is an abundant number, since it is smaller than the sum of its proper divisors (1305313440).

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

566451840 is a wasteful number, since it uses less digits than its factorization.

566451840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391 (or 348 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 566451840 is about 23800.2487381960. The cubic root of 566451840 is about 827.4104417153.

It can be divided in two parts, 56645 and 1840, that added together give a palindrome (58485).

The spelling of 566451840 in words is "five hundred sixty-six million, four hundred fifty-one thousand, eight hundred forty".