66134215 has 16 divisors (see below), whose sum is σ = 92809728. Its totient is φ = 44293536.

The previous prime is 66134203. The next prime is 66134249. The reversal of 66134215 is 51243166.

66134215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 66134215 - 2⁵ = 66134183 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 (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20467 + ... + 23476.

It is an arithmetic number, because the mean of its divisors is an integer number (5800608).

Almost surely, 2^66134215 is an apocalyptic number.

66134215 is a deficient number, since it is larger than the sum of its proper divisors (26675513).

66134215 is a wasteful number, since it uses less digits than its factorization.

66134215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43998.

The product of its digits is 4320, while the sum is 28.

The square root of 66134215 is about 8132.2945716446. The cubic root of 66134215 is about 404.3977534662.

The spelling of 66134215 in words is "sixty-six million, one hundred thirty-four thousand, two hundred fifteen".