345555566 has 24 divisors (see below), whose sum is σ = 560004840. Its totient is φ = 159842432.

The previous prime is 345555547. The next prime is 345555569. The reversal of 345555566 is 665555543.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345555569) 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 11 ways as a sum of consecutive naturals, for example, 29036 + ... + 39168.

It is an arithmetic number, because the mean of its divisors is an integer number (23333535).

Almost surely, 2^345555566 is an apocalyptic number.

345555566 is a deficient number, since it is larger than the sum of its proper divisors (214449274).

345555566 is a wasteful number, since it uses less digits than its factorization.

345555566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10228 (or 10211 counting only the distinct ones).

The product of its digits is 1350000, while the sum is 44.

The square root of 345555566 is about 18589.1249390605. The cubic root of 345555566 is about 701.7341804644.

The spelling of 345555566 in words is "three hundred forty-five million, five hundred fifty-five thousand, five hundred sixty-six".