666175350575 has 24 divisors (see below), whose sum is σ = 944137666560. Its totient is φ = 456771103200.

The previous prime is 666175350553. The next prime is 666175350679. The reversal of 666175350575 is 575053571666.

It is not a de Polignac number, because 666175350575 - 2⁸ = 666175350319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 666175350575.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2269490 + ... + 2546160.

It is an arithmetic number, because the mean of its divisors is an integer number (39339069440).

Almost surely, 2^666175350575 is an apocalyptic number.

666175350575 is a deficient number, since it is larger than the sum of its proper divisors (277962315985).

666175350575 is a wasteful number, since it uses less digits than its factorization.

666175350575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290447 (or 290442 counting only the distinct ones).

The product of its (nonzero) digits is 19845000, while the sum is 56.

The spelling of 666175350575 in words is "six hundred sixty-six billion, one hundred seventy-five million, three hundred fifty thousand, five hundred seventy-five".