143662666 has 8 divisors (see below), whose sum is σ = 246278880. Its totient is φ = 61569708.

The previous prime is 143662639. The next prime is 143662679. The reversal of 143662666 is 666266341.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5130796 + ... + 5130823.

It is an arithmetic number, because the mean of its divisors is an integer number (30784860).

Almost surely, 2^143662666 is an apocalyptic number.

143662666 is a deficient number, since it is larger than the sum of its proper divisors (102616214).

143662666 is a wasteful number, since it uses less digits than its factorization.

143662666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10261628.

The product of its digits is 186624, while the sum is 40.

The square root of 143662666 is about 11985.9361753682. The cubic root of 143662666 is about 523.7386693911.

The spelling of 143662666 in words is "one hundred forty-three million, six hundred sixty-two thousand, six hundred sixty-six".