378566066 has 16 divisors (see below), whose sum is σ = 590911200. Its totient is φ = 181745088.

The previous prime is 378566063. The next prime is 378566077. The reversal of 378566066 is 660665873.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 378566066.

It is not an unprimeable number, because it can be changed into a prime (378566063) 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, 32231 + ... + 42378.

It is an arithmetic number, because the mean of its divisors is an integer number (36931950).

Almost surely, 2^378566066 is an apocalyptic number.

378566066 is a deficient number, since it is larger than the sum of its proper divisors (212345134).

378566066 is a wasteful number, since it uses less digits than its factorization.

378566066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74713.

The product of its (nonzero) digits is 1088640, while the sum is 47.

The square root of 378566066 is about 19456.7742958590. The cubic root of 378566066 is about 723.4034250544.

The spelling of 378566066 in words is "three hundred seventy-eight million, five hundred sixty-six thousand, sixty-six".