66260575274 has 16 divisors (see below), whose sum is σ = 100314297600. Its totient is φ = 32822546544.

The previous prime is 66260575219. The next prime is 66260575301. The reversal of 66260575274 is 47257506266.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3355859 + ... + 3375545.

It is an arithmetic number, because the mean of its divisors is an integer number (6269643600).

Almost surely, 2^66260575274 is an apocalyptic number.

66260575274 is a deficient number, since it is larger than the sum of its proper divisors (34053722326).

66260575274 is a wasteful number, since it uses less digits than its factorization.

66260575274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35237.

The product of its (nonzero) digits is 4233600, while the sum is 50.

The spelling of 66260575274 in words is "sixty-six billion, two hundred sixty million, five hundred seventy-five thousand, two hundred seventy-four".