66201488 has 10 divisors (see below), whose sum is σ = 128265414. Its totient is φ = 33100736.

The previous prime is 66201479. The next prime is 66201557. The reversal of 66201488 is 88410266.

66201488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 57032704 + 9168784 = 7552^2 + 3028^2 .

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 as a sum of consecutive naturals, namely, 2068781 + ... + 2068812.

Almost surely, 2^66201488 is an apocalyptic number.

It is an amenable number.

66201488 is a deficient number, since it is larger than the sum of its proper divisors (62063926).

66201488 is a wasteful number, since it uses less digits than its factorization.

66201488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4137601 (or 4137595 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 66201488 is about 8136.4296838355. The cubic root of 66201488 is about 404.5348273987.

The spelling of 66201488 in words is "sixty-six million, two hundred one thousand, four hundred eighty-eight".