566660550 has 48 divisors (see below), whose sum is σ = 1443313872. Its totient is φ = 147024000.

The previous prime is 566660539. The next prime is 566660557. The reversal of 566660550 is 55066665.

It is a happy number.

It is a super-2 number, since 2×566660550² = 642208357852605000, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 566660499 and 566660508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (566660557) 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, 45501 + ... + 56600.

It is an arithmetic number, because the mean of its divisors is an integer number (30069039).

Almost surely, 2^566660550 is an apocalyptic number.

566660550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

566660550 is an abundant number, since it is smaller than the sum of its proper divisors (876653322).

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

566660550 is a wasteful number, since it uses less digits than its factorization.

566660550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102153 (or 102148 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 39.

The square root of 566660550 is about 23804.6329524318. The cubic root of 566660550 is about 827.5120494286.

The spelling of 566660550 in words is "five hundred sixty-six million, six hundred sixty thousand, five hundred fifty".