215166223550147 has 2 divisors, whose sum is σ = 215166223550148. Its totient is φ = 215166223550146.

The previous prime is 215166223550129. The next prime is 215166223550303. The reversal of 215166223550147 is 741055322661512.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 215166223550147 - 2¹² = 215166223546051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 215166223550095 and 215166223550104.

It is not a weakly prime, because it can be changed into another prime (215166220550147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107583111775073 + 107583111775074.

It is an arithmetic number, because the mean of its divisors is an integer number (107583111775074).

Almost surely, 2^{215166223550147} is an apocalyptic number.

215166223550147 is a deficient number, since it is larger than the sum of its proper divisors (1).

215166223550147 is an equidigital number, since it uses as much as digits as its factorization.

215166223550147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024000, while the sum is 50.

The spelling of 215166223550147 in words is "two hundred fifteen trillion, one hundred sixty-six billion, two hundred twenty-three million, five hundred fifty thousand, one hundred forty-seven".