66830552 has 8 divisors (see below), whose sum is σ = 125307300. Its totient is φ = 33415272.

The previous prime is 66830549. The next prime is 66830591. The reversal of 66830552 is 25503866.

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, 4176902 + ... + 4176917.

Almost surely, 2^66830552 is an apocalyptic number.

It is an amenable number.

66830552 is a deficient number, since it is larger than the sum of its proper divisors (58476748).

66830552 is a wasteful number, since it uses less digits than its factorization.

66830552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8353825 (or 8353821 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 66830552 is about 8174.9955351670. The cubic root of 66830552 is about 405.8121223796.

The spelling of 66830552 in words is "sixty-six million, eight hundred thirty thousand, five hundred fifty-two".