66734124801215 has 8 divisors (see below), whose sum is σ = 82664206205568. Its totient is φ = 51665128878240.

The previous prime is 66734124801173. The next prime is 66734124801263. The reversal of 66734124801215 is 51210842143766.

It is a happy number.

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

It is not a de Polignac number, because 66734124801215 - 2¹⁰ = 66734124800191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 215271370172 + ... + 215271370481.

It is an arithmetic number, because the mean of its divisors is an integer number (10333025775696).

Almost surely, 2^{66734124801215} is an apocalyptic number.

66734124801215 is a deficient number, since it is larger than the sum of its proper divisors (15930081404353).

66734124801215 is a wasteful number, since it uses less digits than its factorization.

66734124801215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430542740689.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 66734124801215 in words is "sixty-six trillion, seven hundred thirty-four billion, one hundred twenty-four million, eight hundred one thousand, two hundred fifteen".