666200242 has 16 divisors (see below), whose sum is σ = 1023430464. Its totient is φ = 325150000.

The previous prime is 666200237. The next prime is 666200243. The reversal of 666200242 is 242002666.

It is a self number, because there is not a number n which added to its sum of digits gives 666200242.

It is not an unprimeable number, because it can be changed into a prime (666200243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8884 + ... + 37567.

It is an arithmetic number, because the mean of its divisors is an integer number (63964404).

Almost surely, 2^666200242 is an apocalyptic number.

666200242 is a deficient number, since it is larger than the sum of its proper divisors (357230222).

666200242 is a wasteful number, since it uses less digits than its factorization.

666200242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46625.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 666200242 is about 25810.8551195035. The cubic root of 666200242 is about 873.3766874670.

The spelling of 666200242 in words is "six hundred sixty-six million, two hundred thousand, two hundred forty-two".