66550710050527 has 8 divisors (see below), whose sum is σ = 70468550464176. Its totient is φ = 62633213277312.

The previous prime is 66550710050477. The next prime is 66550710050557. The reversal of 66550710050527 is 72505001705566.

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 66550710050527 - 2¹⁹ = 66550709526239 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 (66550710050557) 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, 85511328 + ... + 86286085.

It is an arithmetic number, because the mean of its divisors is an integer number (8808568808022).

Almost surely, 2^{66550710050527} is an apocalyptic number.

66550710050527 is a deficient number, since it is larger than the sum of its proper divisors (3917840413649).

66550710050527 is a wasteful number, since it uses less digits than its factorization.

66550710050527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171820217.

The product of its (nonzero) digits is 2205000, while the sum is 49.

The spelling of 66550710050527 in words is "sixty-six trillion, five hundred fifty billion, seven hundred ten million, fifty thousand, five hundred twenty-seven".