66480268 has 24 divisors (see below), whose sum is σ = 126518112. Its totient is φ = 30438144.

The previous prime is 66480263. The next prime is 66480269. The reversal of 66480268 is 86208466.

It is a self number, because there is not a number n which added to its sum of digits gives 66480268.

It is not an unprimeable number, because it can be changed into a prime (66480263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10696 + ... + 15727.

It is an arithmetic number, because the mean of its divisors is an integer number (5271588).

Almost surely, 2^66480268 is an apocalyptic number.

66480268 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

66480268 is a deficient number, since it is larger than the sum of its proper divisors (60037844).

66480268 is a wasteful number, since it uses less digits than its factorization.

66480268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26481 (or 26479 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 66480268 is about 8153.5432788451. The cubic root of 66480268 is about 405.1018755046.

The spelling of 66480268 in words is "sixty-six million, four hundred eighty thousand, two hundred sixty-eight".