241861666 has 8 divisors (see below), whose sum is σ = 364141980. Its totient is φ = 120481008.

The previous prime is 241861639. The next prime is 241861727. The reversal of 241861666 is 666168142.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 213014025 + 28847641 = 14595^2 + 5371^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 224241 + ... + 225316.

Almost surely, 2^241861666 is an apocalyptic number.

241861666 is a deficient number, since it is larger than the sum of its proper divisors (122280314).

241861666 is a wasteful number, since it uses less digits than its factorization.

241861666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449828.

The product of its digits is 82944, while the sum is 40.

The square root of 241861666 is about 15551.9023273682. The cubic root of 241861666 is about 623.0492056976.

It can be divided in two parts, 24186 and 1666, that added together give a palindrome (25852).

The spelling of 241861666 in words is "two hundred forty-one million, eight hundred sixty-one thousand, six hundred sixty-six".