666151516311437 has 8 divisors (see below), whose sum is σ = 717881631989760. Its totient is φ = 614491070825520.

The previous prime is 666151516311419. The next prime is 666151516311451. The reversal of 666151516311437 is 734113615151666.

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 666151516311437 - 2¹⁸ = 666151516049293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666151516310437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17417528237 + ... + 17417566482.

It is an arithmetic number, because the mean of its divisors is an integer number (89735203998720).

Almost surely, 2^{666151516311437} is an apocalyptic number.

It is an amenable number.

666151516311437 is a deficient number, since it is larger than the sum of its proper divisors (51730115678323).

666151516311437 is a wasteful number, since it uses less digits than its factorization.

666151516311437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34835096203.

The product of its digits is 8164800, while the sum is 56.

The spelling of 666151516311437 in words is "six hundred sixty-six trillion, one hundred fifty-one billion, five hundred sixteen million, three hundred eleven thousand, four hundred thirty-seven".