66375099170 has 32 divisors (see below), whose sum is σ = 121039132032. Its totient is φ = 26203153792.

The previous prime is 66375099169. The next prime is 66375099209. The reversal of 66375099170 is 7199057366.

It is a happy number.

It is a Curzon 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 15 ways as a sum of consecutive naturals, for example, 775214 + ... + 856566.

It is an arithmetic number, because the mean of its divisors is an integer number (3782472876).

Almost surely, 2^66375099170 is an apocalyptic number.

66375099170 is a deficient number, since it is larger than the sum of its proper divisors (54664032862).

66375099170 is a wasteful number, since it uses less digits than its factorization.

66375099170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82426.

The product of its (nonzero) digits is 2143260, while the sum is 53.

The spelling of 66375099170 in words is "sixty-six billion, three hundred seventy-five million, ninety-nine thousand, one hundred seventy".