66854548 has 6 divisors (see below), whose sum is σ = 116995466. Its totient is φ = 33427272.

The previous prime is 66854533. The next prime is 66854549. The reversal of 66854548 is 84545866.

It can be written as a sum of positive squares in only one way, i.e., 62536464 + 4318084 = 7908^2 + 2078^2 .

It is a junction number, because it is equal to n+sod(n) for n = 66854498 and 66854507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66854549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8356815 + ... + 8356822.

Almost surely, 2^66854548 is an apocalyptic number.

It is an amenable number.

66854548 is a deficient number, since it is larger than the sum of its proper divisors (50140918).

66854548 is a wasteful number, since it uses less digits than its factorization.

66854548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16713641 (or 16713639 counting only the distinct ones).

The product of its digits is 921600, while the sum is 46.

The square root of 66854548 is about 8176.4630495099. The cubic root of 66854548 is about 405.8606865075.

The spelling of 66854548 in words is "sixty-six million, eight hundred fifty-four thousand, five hundred forty-eight".