666789017233 has 8 divisors (see below), whose sum is σ = 682923473408. Its totient is φ = 650683094544.

The previous prime is 666789017227. The next prime is 666789017291. The reversal of 666789017233 is 332710987666.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 666789017233 - 2²¹ = 666786920081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (666789017203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7086066 + ... + 7179547.

It is an arithmetic number, because the mean of its divisors is an integer number (85365434176).

Almost surely, 2^666789017233 is an apocalyptic number.

It is an amenable number.

666789017233 is a deficient number, since it is larger than the sum of its proper divisors (16134456175).

666789017233 is a wasteful number, since it uses less digits than its factorization.

666789017233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14266743.

The product of its (nonzero) digits is 13716864, while the sum is 58.

The spelling of 666789017233 in words is "six hundred sixty-six billion, seven hundred eighty-nine million, seventeen thousand, two hundred thirty-three".