66480288 has 48 divisors (see below), whose sum is σ = 199442880. Its totient is φ = 18994176.

The previous prime is 66480269. The next prime is 66480307. The reversal of 66480288 is 88208466.

66480288 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (66480269) and next prime (66480307).

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48793 + ... + 50136.

It is an arithmetic number, because the mean of its divisors is an integer number (4155060).

Almost surely, 2^66480288 is an apocalyptic number.

It is an amenable number.

66480288 is an abundant number, since it is smaller than the sum of its proper divisors (132962592).

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

66480288 is a wasteful number, since it uses less digits than its factorization.

66480288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98949 (or 98941 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 42.

The square root of 66480288 is about 8153.5445053057. The cubic root of 66480288 is about 405.1019161284.

The spelling of 66480288 in words is "sixty-six million, four hundred eighty thousand, two hundred eighty-eight".