66519134 has 32 divisors (see below), whose sum is σ = 112324320. Its totient is φ = 29286400.

The previous prime is 66519121. The next prime is 66519143. The reversal of 66519134 is 43191566.

It is a junction number, because it is equal to n+sod(n) for n = 66519094 and 66519103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103454 + ... + 104094.

It is an arithmetic number, because the mean of its divisors is an integer number (3510135).

Almost surely, 2^66519134 is an apocalyptic number.

66519134 is a deficient number, since it is larger than the sum of its proper divisors (45805186).

66519134 is a wasteful number, since it uses less digits than its factorization.

66519134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796.

The product of its digits is 19440, while the sum is 35.

The square root of 66519134 is about 8155.9263115847. The cubic root of 66519134 is about 405.1808042991.

The spelling of 66519134 in words is "sixty-six million, five hundred nineteen thousand, one hundred thirty-four".