667634370674227 has 8 divisors (see below), whose sum is σ = 728597458118592. Its totient is φ = 606716125521000.

The previous prime is 667634370674213. The next prime is 667634370674231. The reversal of 667634370674227 is 722476073436766.

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

It is not a de Polignac number, because 667634370674227 - 2⁴⁷ = 526896882318899 is a prime.

It is a super-2 number, since 2×667634370674227² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (667634370671227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11210541649 + ... + 11210601202.

It is an arithmetic number, because the mean of its divisors is an integer number (91074682264824).

Almost surely, 2^{667634370674227} is an apocalyptic number.

667634370674227 is a deficient number, since it is larger than the sum of its proper divisors (60963087444365).

667634370674227 is a wasteful number, since it uses less digits than its factorization.

667634370674227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22421145569.

The product of its (nonzero) digits is 1792336896, while the sum is 70.

The spelling of 667634370674227 in words is "six hundred sixty-seven trillion, six hundred thirty-four billion, three hundred seventy million, six hundred seventy-four thousand, two hundred twenty-seven".