66226274027 has 4 divisors (see below), whose sum is σ = 66452302560. Its totient is φ = 66000245496.

The previous prime is 66226273979. The next prime is 66226274041. The reversal of 66226274027 is 72047262266.

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

It is a cyclic number.

It is not a de Polignac number, because 66226274027 - 2³⁴ = 49046404843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66226274627) 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, 113013827 + ... + 113014412.

It is an arithmetic number, because the mean of its divisors is an integer number (16613075640).

Almost surely, 2^66226274027 is an apocalyptic number.

66226274027 is a deficient number, since it is larger than the sum of its proper divisors (226028533).

66226274027 is a wasteful number, since it uses less digits than its factorization.

66226274027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226028532.

The product of its (nonzero) digits is 677376, while the sum is 44.

The spelling of 66226274027 in words is "sixty-six billion, two hundred twenty-six million, two hundred seventy-four thousand, twenty-seven".