113566778 has 32 divisors (see below), whose sum is σ = 192326400. Its totient is φ = 49996848.

The previous prime is 113566751. The next prime is 113566823. The reversal of 113566778 is 877665311.

It is a plaindrome in base 10 and base 14.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 316163 + ... + 316521.

It is an arithmetic number, because the mean of its divisors is an integer number (6010200).

Almost surely, 2^113566778 is an apocalyptic number.

113566778 is a deficient number, since it is larger than the sum of its proper divisors (78759622).

113566778 is an equidigital number, since it uses as much as digits as its factorization.

113566778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443 (or 397 counting only the distinct ones).

The product of its digits is 211680, while the sum is 44.

The square root of 113566778 is about 10656.7714623145. The cubic root of 113566778 is about 484.2657654086.

The spelling of 113566778 in words is "one hundred thirteen million, five hundred sixty-six thousand, seven hundred seventy-eight".