566421246452405 has 4 divisors (see below), whose sum is σ = 679705495742892. Its totient is φ = 453136997161920.

The previous prime is 566421246452393. The next prime is 566421246452419. The reversal of 566421246452405 is 504254642124665.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 309737718800689 + 256683527651716 = 17599367^2 + 16021346^2 .

It is not a de Polignac number, because 566421246452405 - 2¹⁴ = 566421246436021 is a prime.

It is a super-2 number, since 2×566421246452405² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56642124645236 + ... + 56642124645245.

It is an arithmetic number, because the mean of its divisors is an integer number (169926373935723).

Almost surely, 2^{566421246452405} is an apocalyptic number.

It is an amenable number.

566421246452405 is a deficient number, since it is larger than the sum of its proper divisors (113284249290487).

566421246452405 is a wasteful number, since it uses less digits than its factorization.

566421246452405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113284249290486.

The product of its (nonzero) digits is 55296000, while the sum is 56.

The spelling of 566421246452405 in words is "five hundred sixty-six trillion, four hundred twenty-one billion, two hundred forty-six million, four hundred fifty-two thousand, four hundred five".