666650094 has 32 divisors (see below), whose sum is σ = 1455439104. Its totient is φ = 201886080.

The previous prime is 666650041. The next prime is 666650099. The reversal of 666650094 is 490056666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666650099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173862 + ... + 177654.

It is an arithmetic number, because the mean of its divisors is an integer number (45482472).

Almost surely, 2^666650094 is an apocalyptic number.

666650094 is an abundant number, since it is smaller than the sum of its proper divisors (788789010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

666650094 is a wasteful number, since it uses less digits than its factorization.

666650094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6472.

The product of its (nonzero) digits is 233280, while the sum is 42.

The square root of 666650094 is about 25819.5680444116. The cubic root of 666650094 is about 873.5732258974.

The spelling of 666650094 in words is "six hundred sixty-six million, six hundred fifty thousand, ninety-four".