144436666 has 16 divisors (see below), whose sum is σ = 238694688. Its totient is φ = 65002000.

The previous prime is 144436639. The next prime is 144436679. The reversal of 144436666 is 666634441.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30280 + ... + 34723.

It is an arithmetic number, because the mean of its divisors is an integer number (14918418).

Almost surely, 2^144436666 is an apocalyptic number.

144436666 is a deficient number, since it is larger than the sum of its proper divisors (94258022).

144436666 is a wasteful number, since it uses less digits than its factorization.

144436666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65117.

The product of its digits is 248832, while the sum is 40.

The square root of 144436666 is about 12018.1806443405. The cubic root of 144436666 is about 524.6775537757.

The spelling of 144436666 in words is "one hundred forty-four million, four hundred thirty-six thousand, six hundred sixty-six".