66195662 has 16 divisors (see below), whose sum is σ = 109420080. Its totient is φ = 29840832.

The previous prime is 66195659. The next prime is 66195667. The reversal of 66195662 is 26659166.

66195662 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66195667) by changing a digit.

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, 28487 + ... + 30722.

It is an arithmetic number, because the mean of its divisors is an integer number (6838755).

Almost surely, 2^66195662 is an apocalyptic number.

66195662 is a deficient number, since it is larger than the sum of its proper divisors (43224418).

66195662 is a wasteful number, since it uses less digits than its factorization.

66195662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59267.

The product of its digits is 116640, while the sum is 41.

The square root of 66195662 is about 8136.0716565183. The cubic root of 66195662 is about 404.5229601476.

The spelling of 66195662 in words is "sixty-six million, one hundred ninety-five thousand, six hundred sixty-two".