845612066 has 16 divisors (see below), whose sum is σ = 1425380544. Its totient is φ = 373313424.

The previous prime is 845612057. The next prime is 845612069. The reversal of 845612066 is 660216548.

It is not an unprimeable number, because it can be changed into a prime (845612069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 706436 + ... + 707631.

It is an arithmetic number, because the mean of its divisors is an integer number (89086284).

Almost surely, 2^845612066 is an apocalyptic number.

845612066 is a deficient number, since it is larger than the sum of its proper divisors (579768478).

845612066 is a wasteful number, since it uses less digits than its factorization.

845612066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1414105.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 845612066 is about 29079.4096570065. The cubic root of 845612066 is about 945.6354044377.

The spelling of 845612066 in words is "eight hundred forty-five million, six hundred twelve thousand, sixty-six".