66846245 has 16 divisors (see below), whose sum is σ = 81696000. Its totient is φ = 52498368.

The previous prime is 66846239. The next prime is 66846253. The reversal of 66846245 is 54264866.

It is a cyclic number.

It is not a de Polignac number, because 66846245 - 2⁴ = 66846229 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90086 + ... + 90824.

It is an arithmetic number, because the mean of its divisors is an integer number (5106000).

Almost surely, 2^66846245 is an apocalyptic number.

It is an amenable number.

66846245 is a deficient number, since it is larger than the sum of its proper divisors (14849755).

66846245 is a wasteful number, since it uses less digits than its factorization.

66846245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052.

The product of its digits is 276480, while the sum is 41.

The square root of 66846245 is about 8175.9552958660. The cubic root of 66846245 is about 405.8438838571.

The spelling of 66846245 in words is "sixty-six million, eight hundred forty-six thousand, two hundred forty-five".