66351415227 has 8 divisors (see below), whose sum is σ = 88535631360. Its totient is φ = 44200737960.

The previous prime is 66351415201. The next prime is 66351415237. The reversal of 66351415227 is 72251415366.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66351415227 - 2⁸ = 66351414971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66351415237) 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, 8380099 + ... + 8388012.

It is an arithmetic number, because the mean of its divisors is an integer number (11066953920).

Almost surely, 2^66351415227 is an apocalyptic number.

66351415227 is a deficient number, since it is larger than the sum of its proper divisors (22184216133).

66351415227 is a wasteful number, since it uses less digits than its factorization.

66351415227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16769433.

The product of its digits is 302400, while the sum is 42.

The spelling of 66351415227 in words is "sixty-six billion, three hundred fifty-one million, four hundred fifteen thousand, two hundred twenty-seven".