66305948 has 12 divisors (see below), whose sum is σ = 120036840. Its totient is φ = 32009712.

The previous prime is 66305929. The next prime is 66305951. The reversal of 66305948 is 84950366.

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 3 ways as a sum of consecutive naturals, for example, 285686 + ... + 285917.

It is an arithmetic number, because the mean of its divisors is an integer number (10003070).

Almost surely, 2^66305948 is an apocalyptic number.

It is an amenable number.

66305948 is a deficient number, since it is larger than the sum of its proper divisors (53730892).

66305948 is a wasteful number, since it uses less digits than its factorization.

66305948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571636 (or 571634 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 66305948 is about 8142.8464310706. The cubic root of 66305948 is about 404.7474887880.

The spelling of 66305948 in words is "sixty-six million, three hundred five thousand, nine hundred forty-eight".