566641845 has 192 divisors, whose sum is σ = 1334292480. Its totient is φ = 221616000.

The previous prime is 566641837. The next prime is 566641849. The reversal of 566641845 is 548146665.

It is not a de Polignac number, because 566641845 - 2³ = 566641837 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 566641845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (566641849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 3752520 + ... + 3752670.

It is an arithmetic number, because the mean of its divisors is an integer number (6949440).

Almost surely, 2^566641845 is an apocalyptic number.

566641845 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

566641845 is an abundant number, since it is smaller than the sum of its proper divisors (767650635).

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

566641845 is a wasteful number, since it uses less digits than its factorization.

566641845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221 (or 196 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 566641845 is about 23804.2400634845. The cubic root of 566641845 is about 827.5029441637.

It can be divided in two parts, 566 and 641845, that added together give a triangular number (642411 = T₁₁₃₃).

The spelling of 566641845 in words is "five hundred sixty-six million, six hundred forty-one thousand, eight hundred forty-five".