108855566 has 4 divisors (see below), whose sum is σ = 163283352. Its totient is φ = 54427782.

The previous prime is 108855563. The next prime is 108855613. The reversal of 108855566 is 665558801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 665558801 = 1033 ⋅644297.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108855563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27213890 + ... + 27213893.

It is an arithmetic number, because the mean of its divisors is an integer number (40820838).

Almost surely, 2^108855566 is an apocalyptic number.

108855566 is a deficient number, since it is larger than the sum of its proper divisors (54427786).

108855566 is an equidigital number, since it uses as much as digits as its factorization.

108855566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54427785.

The product of its (nonzero) digits is 288000, while the sum is 44.

The square root of 108855566 is about 10433.3870818637. The cubic root of 108855566 is about 477.4745338794.

The spelling of 108855566 in words is "one hundred eight million, eight hundred fifty-five thousand, five hundred sixty-six".