66066050116519 has 4 divisors (see below), whose sum is σ = 67471710757344. Its totient is φ = 64660389475696.

The previous prime is 66066050116483. The next prime is 66066050116529. The reversal of 66066050116519 is 91561105066066.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 66066050116519 - 2¹³ = 66066050108327 is a prime.

It is a super-2 number, since 2×66066050116519² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66066050116529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 702830320342 + ... + 702830320435.

It is an arithmetic number, because the mean of its divisors is an integer number (16867927689336).

Almost surely, 2^{66066050116519} is an apocalyptic number.

66066050116519 is a deficient number, since it is larger than the sum of its proper divisors (1405660640825).

66066050116519 is a wasteful number, since it uses less digits than its factorization.

66066050116519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1405660640824.

The product of its (nonzero) digits is 1749600, while the sum is 52.

The spelling of 66066050116519 in words is "sixty-six trillion, sixty-six billion, fifty million, one hundred sixteen thousand, five hundred nineteen".