66206552 has 8 divisors (see below), whose sum is σ = 124137300. Its totient is φ = 33103272.

The previous prime is 66206531. The next prime is 66206599. The reversal of 66206552 is 25560266.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4137902 + ... + 4137917.

Almost surely, 2^66206552 is an apocalyptic number.

It is an amenable number.

66206552 is a deficient number, since it is larger than the sum of its proper divisors (57930748).

66206552 is a wasteful number, since it uses less digits than its factorization.

66206552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8275825 (or 8275821 counting only the distinct ones).

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

The square root of 66206552 is about 8136.7408708893. The cubic root of 66206552 is about 404.5451419309.

The spelling of 66206552 in words is "sixty-six million, two hundred six thousand, five hundred fifty-two".