66839060 has 12 divisors (see below), whose sum is σ = 140362068. Its totient is φ = 26735616.

The previous prime is 66839027. The next prime is 66839077. The reversal of 66839060 is 6093866.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7333264 + 59505796 = 2708^2 + 7714^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1670957 + ... + 1670996.

It is an arithmetic number, because the mean of its divisors is an integer number (11696839).

Almost surely, 2^66839060 is an apocalyptic number.

It is an amenable number.

66839060 is an abundant number, since it is smaller than the sum of its proper divisors (73523008).

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

66839060 is a wasteful number, since it uses less digits than its factorization.

66839060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3341962 (or 3341960 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 66839060 is about 8175.5158858631. The cubic root of 66839060 is about 405.8293425627.

The spelling of 66839060 in words is "sixty-six million, eight hundred thirty-nine thousand, sixty".