566155566551 has 8 divisors (see below), whose sum is σ = 569353164960. Its totient is φ = 562966814592.

The previous prime is 566155566541. The next prime is 566155566601. The reversal of 566155566551 is 155665551665.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 566155566551 - 2²⁶ = 566088457687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (566155566511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2083235 + ... + 2339268.

It is an arithmetic number, because the mean of its divisors is an integer number (71169145620).

Almost surely, 2^566155566551 is an apocalyptic number.

566155566551 is a deficient number, since it is larger than the sum of its proper divisors (3197598409).

566155566551 is a wasteful number, since it uses less digits than its factorization.

566155566551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4423225.

The product of its digits is 20250000, while the sum is 56.

The spelling of 566155566551 in words is "five hundred sixty-six billion, one hundred fifty-five million, five hundred sixty-six thousand, five hundred fifty-one".