66490562 has 16 divisors (see below), whose sum is σ = 107663040. Its totient is φ = 30702672.

The previous prime is 66490537. The next prime is 66490573. The reversal of 66490562 is 26509466.

66490562 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 23588 + ... + 26255.

It is an arithmetic number, because the mean of its divisors is an integer number (6728940).

Almost surely, 2^66490562 is an apocalyptic number.

66490562 is a deficient number, since it is larger than the sum of its proper divisors (41172478).

66490562 is a wasteful number, since it uses less digits than its factorization.

66490562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49897.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 66490562 is about 8154.1745137077. The cubic root of 66490562 is about 405.1227834803.

The spelling of 66490562 in words is "sixty-six million, four hundred ninety thousand, five hundred sixty-two".