105601666 has 8 divisors (see below), whose sum is σ = 158505084. Its totient is φ = 52766640.

The previous prime is 105601649. The next prime is 105601667. The reversal of 105601666 is 666106501.

It can be written as a sum of positive squares in 2 ways, for example, as 101103025 + 4498641 = 10055^2 + 2121^2 .

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

It is a super-2 number, since 2×105601666² = 22303423723951112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105601667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13045 + ... + 19528.

Almost surely, 2^105601666 is an apocalyptic number.

105601666 is a deficient number, since it is larger than the sum of its proper divisors (52903418).

105601666 is a wasteful number, since it uses less digits than its factorization.

105601666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34196.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 105601666 is about 10276.2671238150. The cubic root of 105601666 is about 472.6687858496.

The spelling of 105601666 in words is "one hundred five million, six hundred one thousand, six hundred sixty-six".