666347510662342 has 8 divisors (see below), whose sum is σ = 999794433882600. Its totient is φ = 333082699368144.

The previous prime is 666347510662307. The next prime is 666347510662357. The reversal of 666347510662342 is 243266015743666.

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 pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45527972367 + ... + 45527987002.

It is an arithmetic number, because the mean of its divisors is an integer number (124974304235325).

Almost surely, 2^{666347510662342} is an apocalyptic number.

666347510662342 is a deficient number, since it is larger than the sum of its proper divisors (333446923220258).

666347510662342 is a wasteful number, since it uses less digits than its factorization.

666347510662342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91055963030.

The product of its (nonzero) digits is 156764160, while the sum is 61.

The spelling of 666347510662342 in words is "six hundred sixty-six trillion, three hundred forty-seven billion, five hundred ten million, six hundred sixty-two thousand, three hundred forty-two".