666298229575 has 24 divisors (see below), whose sum is σ = 901825958016. Its totient is φ = 484308396000.

The previous prime is 666298229557. The next prime is 666298229591. The reversal of 666298229575 is 575922892666.

It is not a de Polignac number, because 666298229575 - 2¹⁷ = 666298098503 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 666298229575.

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, 189121 + ... + 1169770.

It is an arithmetic number, because the mean of its divisors is an integer number (37576081584).

Almost surely, 2^666298229575 is an apocalyptic number.

666298229575 is a deficient number, since it is larger than the sum of its proper divisors (235527728441).

666298229575 is a wasteful number, since it uses less digits than its factorization.

666298229575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360695 (or 1360690 counting only the distinct ones).

The product of its digits is 195955200, while the sum is 67.

The spelling of 666298229575 in words is "six hundred sixty-six billion, two hundred ninety-eight million, two hundred twenty-nine thousand, five hundred seventy-five".