566449673949 has 12 divisors (see below), whose sum is σ = 825445839036. Its totient is φ = 374291229312.

The previous prime is 566449673917. The next prime is 566449673983. The reversal of 566449673949 is 949376944665.

566449673949 is a `hidden beast` number, since 5 + 6 + 64 + 496 + 7 + 39 + 49 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 52919781849 + 513529892100 = 230043^2 + 716610^2 .

It is not a de Polignac number, because 566449673949 - 2⁵ = 566449673917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (566449673149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 278489482 + ... + 278491515.

It is an arithmetic number, because the mean of its divisors is an integer number (68787153253).

Almost surely, 2^566449673949 is an apocalyptic number.

It is an amenable number.

566449673949 is a deficient number, since it is larger than the sum of its proper divisors (258996165087).

566449673949 is a wasteful number, since it uses less digits than its factorization.

566449673949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556981116 (or 556981113 counting only the distinct ones).

The product of its digits is 1058158080, while the sum is 72.

The spelling of 566449673949 in words is "five hundred sixty-six billion, four hundred forty-nine million, six hundred seventy-three thousand, nine hundred forty-nine".