666154312342 has 8 divisors (see below), whose sum is σ = 1007099433216. Its totient is φ = 330454501272.

The previous prime is 666154312337. The next prime is 666154312361. The reversal of 666154312342 is 243213451666.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1311327133 + ... + 1311327640.

It is an arithmetic number, because the mean of its divisors is an integer number (125887429152).

Almost surely, 2^666154312342 is an apocalyptic number.

666154312342 is a deficient number, since it is larger than the sum of its proper divisors (340945120874).

666154312342 is a wasteful number, since it uses less digits than its factorization.

666154312342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2622654902.

The product of its digits is 622080, while the sum is 43.

The spelling of 666154312342 in words is "six hundred sixty-six billion, one hundred fifty-four million, three hundred twelve thousand, three hundred forty-two".