566665011 has 16 divisors (see below), whose sum is σ = 915822720. Its totient is φ = 343433160.

The previous prime is 566665009. The next prime is 566665013. The reversal of 566665011 is 110566665.

It is an interprime number because it is at equal distance from previous prime (566665009) and next prime (566665013).

It is not a de Polignac number, because 566665011 - 2¹ = 566665009 is a prime.

It is a super-2 number, since 2×566665011² = 642218469383260242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (566665013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 953685 + ... + 954278.

It is an arithmetic number, because the mean of its divisors is an integer number (57238920).

Almost surely, 2^566665011 is an apocalyptic number.

566665011 is a deficient number, since it is larger than the sum of its proper divisors (349157709).

566665011 is a wasteful number, since it uses less digits than its factorization.

566665011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1907983 (or 1907977 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 566665011 is about 23804.7266524949. The cubic root of 566665011 is about 827.5142209353.

It can be divided in two parts, 5666650 and 11, that added together give a triangular number (5666661 = T₃₃₆₆).

The spelling of 566665011 in words is "five hundred sixty-six million, six hundred sixty-five thousand, eleven".