66059060 has 24 divisors (see below), whose sum is σ = 142474920. Its totient is φ = 25709184.

The previous prime is 66059057. The next prime is 66059083. The reversal of 66059060 is 6095066.

It can be written as a sum of positive squares in 4 ways, for example, as 13118884 + 52940176 = 3622^2 + 7276^2 .

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 7 ways as a sum of consecutive naturals, for example, 43895 + ... + 45374.

It is an arithmetic number, because the mean of its divisors is an integer number (5936455).

Almost surely, 2^66059060 is an apocalyptic number.

It is an amenable number.

66059060 is an abundant number, since it is smaller than the sum of its proper divisors (76415860).

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

66059060 is a wasteful number, since it uses less digits than its factorization.

66059060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89315 (or 89313 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 66059060 is about 8127.6724835589. The cubic root of 66059060 is about 404.2445093744.

The spelling of 66059060 in words is "sixty-six million, fifty-nine thousand, sixty".