105413666 has 16 divisors (see below), whose sum is σ = 167997240. Its totient is φ = 49512960.

The previous prime is 105413663. The next prime is 105413681. The reversal of 105413666 is 666314501.

It can be written as a sum of positive squares in 4 ways, for example, as 87815641 + 17598025 = 9371^2 + 4195^2 .

It is a super-2 number, since 2×105413666² = 22224081959119112, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (105413663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22415 + ... + 26706.

Almost surely, 2^105413666 is an apocalyptic number.

105413666 is a deficient number, since it is larger than the sum of its proper divisors (62583574).

105413666 is a wasteful number, since it uses less digits than its factorization.

105413666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49189.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 105413666 is about 10267.1157585760. The cubic root of 105413666 is about 472.3881257676.

The spelling of 105413666 in words is "one hundred five million, four hundred thirteen thousand, six hundred sixty-six".