66316048 has 20 divisors (see below), whose sum is σ = 136045980. Its totient is φ = 31207424.

The previous prime is 66316039. The next prime is 66316049. The reversal of 66316048 is 84061366.

It can be written as a sum of positive squares in 2 ways, for example, as 48608784 + 17707264 = 6972^2 + 4208^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (66316049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121633 + ... + 122176.

It is an arithmetic number, because the mean of its divisors is an integer number (6802299).

Almost surely, 2^66316048 is an apocalyptic number.

66316048 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

66316048 is an abundant number, since it is smaller than the sum of its proper divisors (69729932).

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

66316048 is a wasteful number, since it uses less digits than its factorization.

66316048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243834 (or 243828 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 66316048 is about 8143.4665837099. The cubic root of 66316048 is about 404.7680386895.

The spelling of 66316048 in words is "sixty-six million, three hundred sixteen thousand, forty-eight".