666849230357 has 8 divisors (see below), whose sum is σ = 672814221312. Its totient is φ = 660910006800.

The previous prime is 666849230353. The next prime is 666849230371. The reversal of 666849230357 is 753032948666.

It is a happy number.

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 666849230357 - 2² = 666849230353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 666849230296 and 666849230305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666849230353) 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, 6389858 + ... + 6493379.

It is an arithmetic number, because the mean of its divisors is an integer number (84101777664).

Almost surely, 2^666849230357 is an apocalyptic number.

It is an amenable number.

666849230357 is a deficient number, since it is larger than the sum of its proper divisors (5964990955).

666849230357 is a wasteful number, since it uses less digits than its factorization.

666849230357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12883699.

The product of its (nonzero) digits is 39191040, while the sum is 59.

The spelling of 666849230357 in words is "six hundred sixty-six billion, eight hundred forty-nine million, two hundred thirty thousand, three hundred fifty-seven".