66734715125759 has 8 divisors (see below), whose sum is σ = 66786796308960. Its totient is φ = 66682654187776.

The previous prime is 66734715125747. The next prime is 66734715125789. The reversal of 66734715125759 is 95752151743766.

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 66734715125759 - 2¹² = 66734715121663 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 (66734715125789) 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, 1537262 + ... + 11654724.

It is an arithmetic number, because the mean of its divisors is an integer number (8348349538620).

Almost surely, 2^{66734715125759} is an apocalyptic number.

66734715125759 is a deficient number, since it is larger than the sum of its proper divisors (52081183201).

66734715125759 is a wasteful number, since it uses less digits than its factorization.

66734715125759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10122609.

The product of its digits is 333396000, while the sum is 68.

The spelling of 66734715125759 in words is "sixty-six trillion, seven hundred thirty-four billion, seven hundred fifteen million, one hundred twenty-five thousand, seven hundred fifty-nine".