66510848 has 56 divisors (see below), whose sum is σ = 139189968. Its totient is φ = 31719424.

The previous prime is 66510839. The next prime is 66510881. The reversal of 66510848 is 84801566.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188240 + ... + 188592.

Almost surely, 2^66510848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66510848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69594984).

66510848 is an abundant number, since it is smaller than the sum of its proper divisors (72679120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66510848 is an equidigital number, since it uses as much as digits as its factorization.

66510848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402 (or 378 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 66510848 is about 8155.4183215823. The cubic root of 66510848 is about 405.1639797288.

The spelling of 66510848 in words is "sixty-six million, five hundred ten thousand, eight hundred forty-eight".