106388566 has 4 divisors (see below), whose sum is σ = 159582852. Its totient is φ = 53194282.

The previous prime is 106388551. The next prime is 106388587. The reversal of 106388566 is 665883601.

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

It is a super-2 number, since 2×106388566² = 22637053951072712, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26597140 + ... + 26597143.

It is an arithmetic number, because the mean of its divisors is an integer number (39895713).

Almost surely, 2^106388566 is an apocalyptic number.

106388566 is a deficient number, since it is larger than the sum of its proper divisors (53194286).

106388566 is an equidigital number, since it uses as much as digits as its factorization.

106388566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53194285.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 106388566 is about 10314.4833123138. The cubic root of 106388566 is about 473.8399258891.

The spelling of 106388566 in words is "one hundred six million, three hundred eighty-eight thousand, five hundred sixty-six".