66260552 has 8 divisors (see below), whose sum is σ = 124238550. Its totient is φ = 33130272.

The previous prime is 66260531. The next prime is 66260627. The reversal of 66260552 is 25506266.

66260552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 66161956 + 98596 = 8134^2 + 314^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4141277 + ... + 4141292.

Almost surely, 2^66260552 is an apocalyptic number.

It is an amenable number.

66260552 is a deficient number, since it is larger than the sum of its proper divisors (57977998).

66260552 is a wasteful number, since it uses less digits than its factorization.

66260552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8282575 (or 8282571 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 66260552 is about 8140.0584764484. The cubic root of 66260552 is about 404.6550983246.

The spelling of 66260552 in words is "sixty-six million, two hundred sixty thousand, five hundred fifty-two".