215166223550207 has 8 divisors (see below), whose sum is σ = 215278893106080. Its totient is φ = 215053579484640.

The previous prime is 215166223550147. The next prime is 215166223550303. The reversal of 215166223550207 is 702055322661512.

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

It is a cyclic number.

It is not a de Polignac number, because 215166223550207 - 2¹⁰ = 215166223549183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215166223550407) 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, 10525769 + ... + 23262077.

It is an arithmetic number, because the mean of its divisors is an integer number (26909861638260).

Almost surely, 2^{215166223550207} is an apocalyptic number.

215166223550207 is a deficient number, since it is larger than the sum of its proper divisors (112669555873).

215166223550207 is a wasteful number, since it uses less digits than its factorization.

215166223550207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12745153.

The product of its (nonzero) digits is 1512000, while the sum is 47.

The spelling of 215166223550207 in words is "two hundred fifteen trillion, one hundred sixty-six billion, two hundred twenty-three million, five hundred fifty thousand, two hundred seven".